Class / Patent application number | Description | Number of patent applications / Date published |
385096000 | Fusion splicing | 75 |
20080232748 | Fibre-Optic Package and Method of Making the Same - A fibre-optic package comprises at least two fibre optic devices or components ( | 09-25-2008 |
20080247714 | Optical fiber/glass tube fusion-spliced structure, optical fiber assembly including the structure and glass tube used in the structure - An optical fiber/glass tube fusion spliced structure includes an optical fiber made of glass and a glass tube through which the optical fiber is inserted and at least in part of the optical fiber/glass tube fusion spliced structure, an outer circumference portion of the optical fiber and an inner circumference portion of the glass tube are fusion spliced. Part of the fusion spliced portion located in one of the optical fiber and the glass tube is formed of a material having a lower fusion point than a fusion point of part of the fusion spliced portion located in the other. | 10-09-2008 |
20080267568 | Method and apparatus for performing a compression splice - A method for compression splicing optical fibers comprising providing first and second optical fibers, providing a deformable splice tube, heating the deformable splice tube with a heat source, inserting the optical fibers into the heated splice tube until they contact, and applying compression to the heated splice tube to deform the splice tube and maintain their ends in contact. An apparatus for compression splicing optical fibers comprising a deformable splice tube, a compression device and a heat source coupled to the deformable splice tube through the compression device. | 10-30-2008 |
20080279511 | Optical Connector Kit - An optical connector kit as described below is provided. An inserting operation of an optical fiber to be inserted into a plurality of connector parts is facilitated. All connector parts constituting an optical connector are accommodated, including a ferrule. To the ferrule, an optical fiber having a predetermined length is attached and has been subjected to end face polishing processing. | 11-13-2008 |
20080292251 | POLARIZATION-MAINTAINING OPTICAL FIBER, METHOD OF MANUFACTURING POLARIZATION-MAINTAINING OPTICAL-FIBER CONNECTING PORTION, AND POLARIZATION-MAINTAINING OPTICAL-FIBER CONNECTING PORTION - A polarization-maintaining optical fiber includes a core region and a cladding region formed around the core region. The cladding region has a refractive index lower than a refractive index of the core region. A refractive index profile of the core region is either one of a step shaped or a concave shaped. The cladding region includes two holes formed in such a manner that a shortest distance from the core region is virtually zero at locations in opposite to each other across the core region. | 11-27-2008 |
20090022457 | Fusion-splice fiber optic connectors and related tools - Fiber optic connectors having an optical fiber stub that is fusion-spliced for optical connection and related tools for the fiber optic connectors are disclosed. Specifically, the connector assembly for fusion-splicing includes a fiber optic connector having an optic fiber stub and a boot attachable to the fiber optic connector. The boot is configured to transfer the majority of the axial force from the fiber optic cable to the fiber optic connector. Specifically, a splice housing for housing the fusion splice is configured for attachment to an end of the boot for transferring forces from the fiber optic cable to the boot. Consequently, the boot preferably has an extensibility of less than about 2 millimeters under an axial load of about fifteen pounds to inhibit excess forces from acting on the optical fiber stub. | 01-22-2009 |
20090022458 | Optical Turnaround System - A technique is provided for utilizing an optical fiber in a variety of sensing applications and environments by beneficially routing the optical fiber. A continuous optical fiber is created to provide optical continuity between two ends of the optical fiber. The optical continuity is created with the assistance of an optical turnaround constructed in a simple, dependable form able to control the bend of the optical fiber as it extends through the optical turnaround. | 01-22-2009 |
20090034916 | FIBER OPTIC CABLE WITH IN-LINE FIBER OPTIC SPLICE - A fiber optic cable includes first and second fiber optic cables segments that are joined at an in-line splice location at which a fiber optic splice is located. The in-line splice location includes a strain transference arrangement configured to inhibit strain from being transferred to the fiber optic splice. | 02-05-2009 |
20090052846 | Optical Fiber Reinforcement Processing Apparatus and Optical Fiber Reinforcement Processing Method - An optical fiber reinforcement processing apparatus and reinforcement processing method are provided where it is not necessary to dispose a temperature detecting device such as a thermistor, and a heating control in which the detected temperature is not varied, the power consumption is low, and which is accurate is enabled. | 02-26-2009 |
20090060429 | Filled Core Optical Fiber Spliced to Optical Fiber and Method of Making the Same - A filled-core optical fiber ( | 03-05-2009 |
20090067790 | FERRULE TRANSFER METHOD AND FERRULE HOLDER - Other end of a built-in optical fiber of a ferrule with one end of the built-in optical fiber matched with a splicing end surface and other end of the built-in optical fiber protruded from an end portion opposite to the splicing end surface and one end of a splicing optical fiber to be spliced are placed is fusion-sliced with the one end of the splicing optical fiber. After that, the ferrule is held by inserting a cylindrical portion of the ferrule into a holding unit of a ferrule holder from the splicing end surface. The ferrule is transferred while holding a stem extended on an opposite side of the holding unit of the ferrule holder and the splicing optical fiber. | 03-12-2009 |
20090074362 | FUSION SPLICING STRUCTURE OF OPTICAL FIBERS - The present invention is a splicing structure of optical fibers for fusing a double clad fiber and a single clad fiber, the splicing structure is provided with a block covering a fusion splicing point of the double clad fiber and the single clad fiber, and which is made of a highly thermal conductive material. | 03-19-2009 |
20090080841 | METHOD OF CONNECTING OPTICAL FIBERS - A method of connecting a holey fiber to an optical fiber includes fusion splicing an end surface of the holey fiber and an end surface of the optical fiber thereby forming a joint section; and stretching the joint section while heating by pulling the holey fiber and the optical fiber away from each other in a longitudinal direction until an outer diameter of the joint section attains a predetermined value. | 03-26-2009 |
20090129730 | DOUBLE CLAD FIBER AND FIBER END PROCESSING METHOD, AND FIBER-COMBINER CONNECTING STRUCTURE INCLUDING THE SAME - A double clad fiber includes a core, a first cladding provided so as to cover the core, and a second cladding provided so as to cover the first cladding. The second cladding has a plurality of pores extending in a length direction and arranged so as to surround the first cladding. In at least one fiber end, the second cladding has been removed by mechanical processing so that the at least one fiber end is formed by the core and the first cladding. | 05-21-2009 |
20090129731 | Method for Operating a Device for Splicing Optical Waveguides - A device for splicing optical waveguides comprises a heating unit for heating fiber ends of optical waveguides to be spliced. The optical waveguides are heated by means of the heating unit for a time period, with the heated fiber ends emitting thermal radiation. The thermal radiation is detected in the form of intensity distributions at two different times by a recording unit. Quotients which represent a measure of the splicing temperature which occurs during the splicing process can be determined from the intensity values of the detected intensity distributions. The welding current can be varied as a function of a set value of the quotient, by a comparison with the determined quotient, in order in this way to match the splicing temperature to a desired value. | 05-21-2009 |
20090136186 | OPTICAL FIBER FUSION SPLICER AND METHOD FOR ESTIMATING A SHAPE OF BEAM DISCHARGED BY THE OPTICAL FIBER FUSION SPLICER - The present invention is provided for fusion splicing optical fibers with low splice loss even when a shape of a discharge beam for the splicing is distorted. In the present invention, a preliminary discharge is performed with the optical fibers outside a discharge area and an image of the discharge beam thereof is picked up. Based on this image, brightness distributions of the discharge beam are estimated on a plurality of lines in a Z direction that are set in different positions in an X direction, and a discharge center of the beam is found from the plurality of brightness distributions. Then, the abutment portion of the optical fibers is positioned at the discharge center, and a main discharge is performed so as to fusion splice the distal ends of the optical fibers. | 05-28-2009 |
20090214166 | POSITIONING OPTICAL FIBERS - In positioning or aligning ends of optical fibers in relation to each other an offset distance between the fiber ends, the offset distance e.g. being the distance between predetermined reference positions in the fiber ends, is stepwise adjusted using a cascade technique. The method can be executed accurately and fast and be used e.g. in a procedure for core alignment, the predetermined reference positions then being the positions of the cores of the fiber ends such as the positions of the center lines or axes of the cores. Also, the method can be used in a procedure in which the self-focusing effect of optical fibers is used for finding the reference positions, which in this case are the positions of the center lines or axes of the total fiber ends, i.e. center lines or axes of the surfaces of the claddings of the optical fiber ends. Finally, the method can be used for the longitudinal positioning of the fiber ends in which the gap between end surfaces of the fiber ends is set to a desired value. | 08-27-2009 |
20090238523 | Holder, fusion-splicing apparatus, and manufacturing method of optical connector - A holder capable of protecting an optical connector ferrule from an external shock, or the like and executing a fusion-splice of a short optical fiber not to take out the optical connector ferrule from the holder is obtained. | 09-24-2009 |
20090238524 | Apparatus for Thermal Connection of Optical Fibers, and Method for Thermal Connection of Optical Fibers - Disclosed is an apparatus for thermal connection of at least two optical fibers having a first positioning unit associated with the first optical fibers and a second positioning unit associated with the second optical fibers. The positioning units move ends of the first and of the second optical fibers relative to one another to a position which allows thermal connection. The apparatus also has a heat source with a first component and a second component which are arranged along an axis. An observation device is used to determine the distance of the end of at least one of the at least two optical fibers from the axis. The observation device is coupled to a control apparatus that adjusts at least one control parameter for the heat source as a function of the determined distance. | 09-24-2009 |
20090252462 | OPTICAL BOX AND METHOD OF CONNECTING OPTICAL FIBRES - An optical box includes a first part suitable for fastening to an optical fibre distribution cable and a second part having an opening intended for the passage of at least one optical fibre dropped from the distribution cable and at least one optical component positioned in the second part for connecting the dropped optical fibre to at least one optical fibre of a subscriber cable. The second part of the optical box is fastened detachably to the first part of the optical box. The optical box combines the dropping and splicing of optical fibres in a single optical box. | 10-08-2009 |
20090263088 | Fusion Splicer - A fusion splicer that can execute fusion splice and reinforcement preparations of optical fibers to be next subjected to reinforcement treatment efficiently at a proper timing by keeping track of the reinforcement treatment progress state to perform fusion splice and reinforcement treatment in parallel with each other is provided. | 10-22-2009 |
20090274423 | Apparatus and Method for Thermal Connection of Optical Waveguides - A splicer comprises a positioning device, in which the fiber ends in general have a residual offset. A memory stores a predetermined relationship between the possible offset and a parameter which controls the application of heat. The parameter which controls the application of heat, for example the splicing time for a predetermined splicing current, is defined on the basis of an actual offset which can be recorded by means of cameras. | 11-05-2009 |
20090324178 | OPTICAL FIBER SPLICING TECHNIQUE AND OPTICAL MEMBER UNIT - According to an optical fiber splicing technique in which optical fibers F | 12-31-2009 |
20100086263 | Method of Splicing Microstructured Optical Fibers - After aligning the respective end portions of a first and second optical fiber, the first and second optical fibers are heated by an electric arc during a first time period to melt the respective end portions. The end face of at least one of the first and second optical fibers is positioned away from a center of the electric arc by a distance greater than a quarter of the width of the electric arc. After bringing the respective end portions into contact the respective end portions of the first and second optical fibers are heated during a second time period to form a splice joint. | 04-08-2010 |
20100119197 | Field Terminable Fiber Optic Connector Assembly - A fiber optic connector assembly includes a connector and a carrier. The connector has a first mating end and a second end and an optical fiber terminated thereto. The fiber defines a first end adjacent the mating end and a second end protruding out of the second end of the fiber optic connector. A carrier having a connector end and an oppositely disposed cable end is engaged with the connector. An alignment structure is disposed on the carrier that includes a first end and a second end and a throughhole extending therebetween, the alignment structure including a cutaway portion extending perpendicularly to and communicating with the throughhole. The optical fiber terminated to the fiber optic connector is positioned within at least a portion of the throughhole with the second end of the optical fiber located within the cutaway portion. A window is disposed within the cutaway portion over the second end of the optic fiber, the window for visually inspecting the alignment of the second end of the fiber with an end of a second fiber entering the cable end of the carrier. A heat activated element that is configured to melt when exposed to a predetermined amount of heat and resolidify when the heat is removed bonds the second optical fiber to the alignment structure. | 05-13-2010 |
20100135621 | MULTI-ELECTRODE SYSTEM WITH VIBRATING ELECTRODES - A multi-electrode system includes a fiber holder that holds at least one optical fiber, a plurality of electrodes arranged to generate a heated field to heat the at least one optical fiber, and a vibration mechanism that causes at least one of the electrodes from the plurality of electrodes to vibrate. The electrodes can be disposed in at least a partial vacuum. The system can be used for processing many types of fibers, such processing including, as examples, stripping, splicing, annealing, tapering, and so on. Corresponding fiber processing methods are also provided. | 06-03-2010 |
20100158452 | METHOD CONNECTING OPTICAL FIBER OF OPTICAL CONNECTOR WITH OPTICAL TRANSMISSION ELEMENT, CONNECTOR-ATTACHED OPTICAL TRANSMISSION ELEMENT, OPTICAL CONNECTOR, AND ASSEMBLING METHOD OF OPTICAL CONNECTOR - A connection method connects an optical connector and an optical transmission element. The optical connector includes a connector housing, a stop-ring structure, and an optical fiber which protrudes from an end part of the stop-ring structure. The optical transmission element includes a tensile-strength fiber body. The connection method includes fuse-connecting a first end of the optical fiber with a second end of an optical fiber protruding from a transmission element terminal part of the optical transmission element; inserting a fuse-connected optical fiber part and the tensile strength fiber body inside a reinforcing sleeve provided with a hot melt body, and covering and bridging the transmission element terminal part and at least the end part of the stop-ring structure; and integrating the fuse-connected optical fiber part, the tensile strength fiber body, the transmission element terminal part, and the stop-ring structure, by a hot melt resin melted from the hot melt body. | 06-24-2010 |
20100202739 | FERRULE TRANSFER METHOD AND FERRULE HOLDER - Other end of a built-in optical fiber of a ferrule with one end of the built-in optical fiber matched with a splicing end surface and other end of the built-in optical fiber protruded from an end portion opposite to the splicing end surface and one end of a splicing optical fiber to be spliced are placed is fusion-sliced with the one end of the splicing optical fiber. After that, the ferrule is held by inserting a cylindrical portion of the ferrule into a holding unit of a ferrule holder from the splicing end surface. The ferrule is transferred while holding a stem extended on an opposite side of the holding unit of the ferrule holder and the splicing optical fiber. | 08-12-2010 |
20100226613 | MULTI-ELECTRODE SYSTEM - A multi-electrode system comprises a fiber support configured to hold at least one optical fiber and a set of electrodes disposed about the at least one optical fiber and configured to generate arcs between adjacent electrodes to generate a substantially uniform heated field to a circumferential outer surface of the at least one optical fiber. The electrodes can be disposed in at least a partial vacuum. | 09-09-2010 |
20100239214 | APPARATUS AND ARRANGEMENT FOR TRIMMING AND SPLICING OF OPTICAL WAVEGUIDES - An apparatus for trimming and splicing of optical waveguides is disclosed. One embodiment of the apparatus includes a holding device for holding one of the optical waveguides, a trimming device for trimming of one of the optical waveguides and a control device for controlling a movement of at least one of the holding device and the trimming device. The control device drives at least one of the holding device and the trimming device such that the at least one of the holding device and the trimming device is moved to a first position at which one of the optical waveguides can be trimmed by means of the trimming device. | 09-23-2010 |
20100260458 | OPTICAL FIBER CABLE HOLDER, FUSION SPLICER INCLUDING THE HOLDER, AND FUSION SPLICING METHOD USING THE HOLDER - A holder capable of holding an optical fiber cable without breaking or damaging the cable includes a holder main body, a fiber holding portion, and a cable holding portion. The main body has a groove for receiving the optical fiber exposed from the cable sheath at an end part of the cable, and a portion for receiving the end part of the cable sheath. A positioning surface with which an end surface of the cable sheath can come in contact is provided at the boundary between the fiber receiving groove and the cable receiving part. A fiber holding portion for pressing and holding the optical fiber received by the fiber receiving groove, and a cable holding portion for pressing and holding the cable sheath received by the cable receiving part, are configured so that holding by the cable holding portion is released in conjunction with the release of holding by the fiber holding portion. | 10-14-2010 |
20100272405 | OPTICAL FIBER FUSION SPLICER - An optical fiber fusion splicer ( | 10-28-2010 |
20110038585 | Method for Operating an Apparatus for Connecting Optical Waveguides and Apparatus - A method for operating an apparatus for connecting optical waveguides comprises preventing the apparatus to connect optical waveguides in response to a determination of a first state of contamination of an optical system and outputting an information signal in response to a determination of a second state of contamination, the second state representing less contamination than the first state. | 02-17-2011 |
20110142402 | OPTICAL FIBER AND METHOD OF MANUFACTURING THE SAME, END PART PROCESSING METHOD OF OPTICAL FIBER AND OPTICAL FIBER WITH FERRULE - An optical fiber that permits, even when the cladding outer diameter thereof is smaller than 125 μm, an eased splicing with other optical fiber using a general-purpose ferrule, is provided. The optical fiber comprises: a first optical fiber having a first core and a first cladding having a cladding outer diameter smaller than 125 μm, wherein the first cladding has a plurality of air holes that extend longitudinally along the axis of the first core; a second optical fiber having a second core to be spliced to the first core, and a second cladding having a cladding outer diameter larger than the outer diameter of the first cladding, wherein the second cladding is to be spliced to the first cladding; and a fusion splice formed between the end of the first optical fiber and the end of the second optical fiber by fusion. | 06-16-2011 |
20110206329 | FIBER TERMINAL BOX - Disclosed is a fiber terminal box comprising: a panel having a front surface and a rear surface; a front cover for covering the front surface of the panel; and a case adapted to be embedded in a wall. An adapter and a fiber splicing member are mounted on the front surface of the panel, and the panel is adapted to be accommodated in the case and hence be embedded in the wall along with the case. The panel is provided with an optical cable inserting hole through which a lead-in end of an optical cable is led from the rear surface of the panel to the front surface of the panel and is connected to one end of the fiber splicing member. The panel is further provided with a fiber pigtail hole, one end of a fiber pigtail is connected to the terminal of the adapter, the other end of the fiber pigtail is led from the rear surface of the panel to the front surface of the panel through the fiber pigtail hole and is connected to the other end of the fiber splicing member. As the fiber terminal box of the present invention can be embedded in the wall along with the case, the fiber terminal box can be easily mounted and can be in harmony with other panels in house. In addition, since fiber devices, such as the adapter and the fiber splicing member, are all mounted on the front surface of the panel, the operation and management of the fibers become easier than in the prior art. | 08-25-2011 |
20110235982 | METHOD FOR CONNECTING OPTICAL FIBERS AND CONNECTION STRUCTURE OF OPTICAL FIBERS - A method for connecting optical fibers and a connection structure of optical fibers capable of suppressing axial misalignment between cores in end-to-end connection of optical fibers at least one of which has a clad for a non-circular shape. | 09-29-2011 |
20110262084 | FIBER OPTIC CABLE ASSEMBLY AND METHOD OF MAKING THE SAME - A fiber optic cable assembly includes a main fiber optic cable and a pre-connectorized fiber optic cable assembly. Optical fibers of the main fiber optic cable are mass fusion spliced to optical fibers of the pre-connectorized fiber optic cable assembly thereby forming a mass fusion splice. The mass fusion splice is positioned within an outer jacket of the main fiber optic cable. A reinforcing member and a protective transition member are applied to make the fiber optic cable assembly. A method of making the fiber optic cable assembly is also disclosed. | 10-27-2011 |
20120148203 | METHOD OF TERMINATING A FIBER OPTIC CABLE - A method of terminating a fiber optic cable includes removing a portion of an outer jacket from an end of a fiber optic cable to expose an end portion of an optical fiber so that an end of the optical fiber extends a first axial length from the outer jacket. A portion of the fiber optic cable is coiled about a spool so that the end of the optical fiber extends a second axial length from the outer jacket. The second axial length is greater than the first axial length. A second optical fiber is spliced to the optical fiber of the fiber optic cable. The portion of the fiber optic cable is uncoiled so that the optical fiber retracts into the outer jacket of the fiber optic cable. | 06-14-2012 |
20120148204 | FIBER OPTIC SPLICE HOUSING AND INTEGRAL DRY MATE CONNECTOR SYSTEM - A fiber optic splice housing and integral dry mate connector system. In a described embodiment, a fiber optic connection system includes optical fiber sections in respective conduit sections. Each of the conduit sections is received in the housing assembly. An optical connection between the optical fiber sections is positioned within the housing assembly. | 06-14-2012 |
20120170898 | FIBER OPTIC SPLICE HOUSING AND INTEGRAL DRY MATE CONNECTOR SYSTEM - A fiber optic splice housing and integral dry mate connector system. In a described embodiment, a fiber optic connection system includes optical fiber sections in respective conduit sections. Each of the conduit sections is received in the housing assembly. An optical connection between the optical fiber sections is positioned within the housing assembly. | 07-05-2012 |
20120183265 | THERMAL MECHANICAL DIFFUSION SYSTEM AND METHOD - Provided is a thermal mechanical diffusion system and method. In accordance with the present invention, one end of a fiber under tension is vibrated while a portion of the fiber is heated. A push-pull action of one end of the fiber forces increased (or rapid) diffusion of dopants in the portion of the fiber that is in a heat zone, which receives the heat. By controlling the amplitude and frequency of the vibration, a diffusion profile of one or more fibers can be dictated with precision. Heat sources having narrower thermal profiles can enable greater precision in dictating the diffusion profile. As an example, this can be particularly useful for creating a diffusion taper within a fiber to be spliced, where the taper is a result of thermal expansion of the fiber core. Diffusion can occur much more rapidly than is typical. | 07-19-2012 |
20120183266 | MULTI-STAGE FIBER PROCESSING SYSTEM AND METHOD - A multi-stage fiber processing system comprises first and second fiber holders configured to hold respective portions of at least one fiber and a plurality of heat sources arranged between the first and second fiber holders and configured to provide a heat zone that axially extends about the at least on fiber. The first and second fiber holders can be configured to translate away from each other for tapering. The plurality of heat sources can include two 3 electrode heat sources that deliver an extended, substantially isothermic heat field axially about the fiber. All but one heat source can be turned off to splice the fiber. The two 3 electrode heat sources can generate 9 arcs to from the heat zone, wherein arcs between the two 3 electrode heat sources can be rotated about the at least one fiber. | 07-19-2012 |
20120219258 | Field Termination Optical Fiber Connectors and Splicers - The present disclosure provides for improved field termination optical fiber connector members and/or splicers for use in terminating or fusing optical fibers. More particularly, the present disclosure provides for convenient, low-cost, accurate, and effective methods for terminating or fusing optical fibers utilizing advantageous field termination optical fiber connector members and/or splicers. Improved apparatus and methods are provided for use in terminating or fusing a broad variety of optical fibers. | 08-30-2012 |
20120243838 | REINFORCING MEMBER FOR OPTICAL FIBER FUSION-SPLICING PORTION AND REINFORCING METHOD THEREFOR - A reinforcing member of optical fiber fusion-splicing portion and a reinforcing method thereof are provided, in which plural coated optical fibers can be collectively reinforced in the high density, and a heating mechanism for collective reinforcement can be configured at a low cost.
| 09-27-2012 |
20120251059 | SPLICING AND CONNECTORIZATION OF PHOTONIC CRYSTAL FIBRES - A method of coupling a spliceable optical fiber includes (A) providing the spliceable optical fiber, the spliceable optical fiber including (a) a core region; and (b) a microstructured cladding region. The cladding region surrounds the core region and includes (b1) an inner cladding region having a refractive index formed by inner cladding features arranged in an inner cladding background material with a refractive index n | 10-04-2012 |
20130034330 | HYBRID FIBER OPTIC PIGTAIL ASSEMBLY - A pigtail cable assembly comprising a fiber optic cable having a plurality of optical fibers, a mid-section, a first end section and a second end section is disclosed. The plurality of optical fibers are separated from the fiber optic cable at the first end section. One of the plurality of the optical fibers at the second end section is adapted to be connected to a single fiber splice at a second end when single fiber splicing is intended. A sever site is located on the mid-section. The second end section may be severed from the mid-section at the sever site when mass splicing is intended. When the second end section is separated from the mid-section at the sever site the mid-section of the fiber optic cable is adapted to be connected to a mass splice at the sever site. | 02-07-2013 |
20130044986 | SINGLE-MODE TO MULTI-MODE OPTICAL FIBER CORE MATCHING AND CONNECTORIZATION USING A TAPERED FIBER - An apparatus comprises a first fiber segment having a core that transitions from a first core diameter at a first end to a second core diameter at a second end. The first core diameter is smaller than the second core diameter, and the second end is attached to a connector. The apparatus may further include a second fiber segment having a core with the first diameter, wherein the first end of the first fiber segment is spliced onto the second fiber segment. In one embodiment, the small diameter ends of two tapered fiber segments are core-aligned and fusion spliced to the ends of a length of a single-mode fiber and the large diameter ends of the two tapered fiber segments are attached to a connector. | 02-21-2013 |
20130121653 | OPTICAL CONNECTOR AND METHOD FOR ASSEMBLING SAME - An optical connector to which an optical fiber cord including an optical fiber ribbon and a sheath is to be attached includes: a ferrule member a fusion splice protection sleeve, housing and a fixing member. The ferrule member holds holding a plurality of embedded fibers which are to be fusion-spliced respectively to a plurality of optical fibers constituting the optical fiber ribbon. The fusion splice protection sleeve protects a fusion-spliced portion. The housing houses the ferrule member and the fusion splice protection sleeve. The housing has, at the rear end, a recess for receiving a bifurcated portion of the sheath. The fixing member for fixing fixes the sheath to the housings and by holding it. | 05-16-2013 |
20130195409 | METHOD FOR FUSION SPLICING OPTICAL FIBERS - A method for fusion splicing of a holey optical fiber with a cladding having a large number of air holes along the axis thereof to another optical fiber includes the use of arc discharge heating. First, the method uses arc discharge heating such that the temperature of a position rearward of an end surface of the holey optical fiber is higher than the temperature of the end surface, thereby making a tip portion of the holey optical fiber transparent. Next, the cores are aligned with one another. Then the method includes performing fusion splicing by second arc discharge heating. The first arc discharge heating is performed between discharge electrodes positioned rearward of the end surface of the holey optical fiber. The arc heating time of the first arc discharge heating is preferably 200 to 400 milliseconds. | 08-01-2013 |
20130230286 | HEATING DEVICE FOR OPTICAL-FIBER REINFORCEMENT, AND OPTICAL-FIBER FUSION SPLICING DEVICE - An optical fiber reinforcing heating device has a base part, to which a first lid part for covering a sleeve accommodation groove for containing a fiber reinforcement sleeve covering a fusion-splicing part of optical fibers is attached so as to be openable and closable. A pair of fiber holders for holding and securing the optical fibers are disposed on both end sides of the first lid part. Each fiber holder has a second lid part which is attached to a fiber container so as to be openable and closable and presses the optical fiber against the fiber container. A switch lever which is movable longitudinally of the sleeve accommodation groove is disposed on the upper face of the second lid part built in with a pin adapted to move in conjunction with the switch lever. A joint hole adapted to engage the pin is formed within the first lid part. | 09-05-2013 |
20130236145 | OPTICAL FIBER FUSION SPLICER - An optical fiber fusion splicer includes positioning members and clamping members. Each clamping member clamps the bare fiber. A first guiding portion protrudes from the top surface of each positioning member and guides a distal end portion of the bare fiber toward the groove. A concave face of the first guiding portion has a V-shaped cross section. Each clamping member includes a second guiding portion, which guides a base portion of the bare fiber toward the groove of the corresponding positioning member, and a pressing member, which presses the bare fiber against the top surface of the fiber positioning member. A concave face of the second guiding portion has an inverted-V-shaped cross section. The fusion splicer can clamp bare fibers while the bare fibers are received by the groove. | 09-12-2013 |
20130236146 | OPTICAL FIBER HOLDER AND OPTICAL FIBER FUSION-CONNECTING DEVICE - An optical fiber fusion splicer includes optical fiber holders that hold optical fibers. Each optical fiber holder includes a base, a cover, and a connecting portion. The base includes a setting table on which an optical fiber F is placed so as to be oriented in the longitudinal direction of the base. The cover has pressing members that press the optical fiber F placed on the setting table against the setting table. The connecting portion joins the cover to the base such that the cover is openable away from and closeable over the base and movable in the longitudinal direction of the base. | 09-12-2013 |
20130251317 | SPLICE PROTECTOR FOR FIBER OPTIC RIBBONS - A fiber optic assembly includes first and second fiber optic ribbons and a splice protector. Each of the first and second fiber optic ribbons includes a plurality of optical fibers coupled in a substantially flat arrangement, where the optical fibers are aligned side-by-side with one another. The optical fibers of the first ribbon are fusion spliced with the optical fibers of the second ribbon such that the spliced ribbons at the splice have a common lengthwise axis, widthwise axis orthogonal to the lengthwise axis, and thickness axis orthogonal to the lengthwise and widthwise axes. The splice protector supports the optical fibers of the first and second fiber optic ribbons that are spliced to one another at the splice. The splice protector includes an ultra-violet light (UV-) curable adhesive that provides a flexible support for the splice, and is at least half as flexible when cured over the splice as the first and second ribbons in bending about the widthwise axis. | 09-26-2013 |
20130251318 | METHOD FOR CONNECTING OPTICAL FIBERS AND CONNECTION STRUCTURE OF OPTICAL FIBERS - A method for connecting optical fibers and a connection structure of optical fibers capable of suppressing axial misalignment between cores in end-to-end connection of optical fibers at least one of which has a clad for a non-circular shape. A core of at least one optical fiber has a circular shape and a clad thereof has a non-circular shape, and in the optical fiber having the clad of the non-circular shape, the clad is formed to have a more circular shape at and near a splice than at another portion thereof. | 09-26-2013 |
20130279863 | FERRULE TRANSFER METHOD AND FERRULE HOLDER - Other end of a built-in optical fiber of a ferrule with one end of the built-in optical fiber matched with a splicing end surface and other end of the built-in optical fiber protruded from an end portion opposite to the splicing end surface and one end of a splicing optical fiber to be spliced are placed is fusion-sliced with the one end of the splicing optical fiber. After that, the ferrule is held by inserting a cylindrical portion of the ferrule into a holding unit of a ferrule holder from the splicing end surface. The ferrule is transferred while holding a stem extended on an opposite side of the holding unit of the ferrule holder and the splicing optical fiber. | 10-24-2013 |
20130301997 | Method for connecting an optical waveguide, embedded in a fibre composite component, to an external optical waveguide - A method for connecting an optical waveguide embedded in a fibre composite component, in particular of an aircraft and spacecraft, to an external optical waveguide, comprising the following steps: ascertaining a path of the embedded optical waveguide in the fibre composite component; determining a nodal position at which the embedded optical waveguide is to be coupled with the external optical waveguide; exposing, at least in portions, the embedded optical waveguide at the nodal position by removing at least part of the fibre composite component around the embedded optical waveguide; severing the exposed embedded optical waveguide; aligning relative to each other an end portion of the severed, embedded optical waveguide and an end portion of the external optical waveguide; and splicing the mutually aligned end portions of the optical waveguides. | 11-14-2013 |
20130315544 | HEATING DEVICE FOR OPTICAL-FIBER REINFORCEMENT, AND OPTICAL-FIBER FUSION SPLICING DEVICE - An optical fiber reinforcing heating device | 11-28-2013 |
20130336621 | FIBER OPTIC SPLICING SYSTEM - An enclosure system for enclosing a fiber optics splicer so that the fiber optic splicer can be used in hazardous area is disclosed. The enclosure system comprises of an enclosure wherein the top side of the enclosure is adapted to become door of the enclosure and a purging unit connected to the enclosure for performing pressure purging within the enclosure system, wherein the purging unit comprises a pressure purge unit, an air-pumping device, and pressure gauges. A fusion splicer and fiber optic cables to be spliced are installed inside the enclosure and the top side of the enclosure is locked and sealed using a sealing unit. The sealing unit is made of soft materials that conforms around the fiber optic cables to be spliced, hence do not damage the fiber optic cables. Using the purging unit of the enclosure system, flammable gas inside the fiber optics enclosure system is displaced with non-flammable air or inert gas. During splicing, the enclosure system also maintains positive pressure inside the enclosure, hence preventing any flammable gas from entering the enclosure. With the enclosure system, splicing of fiber optics can be done safely, even in a hazardous area, using the fusion splicer installed in the enclosure system. A method utilizing the enclosure system for splicing of fiber optics is also disclosed herein. | 12-19-2013 |
20140169747 | SPLICING TWISTED MULTIPLE CORE OPTICAL FIBERS - A method of coupling optical fibers containing cores or other structures that twist about the axis of one or both fibers. The fiber end faces are aligned axially to confront one another, and side view images of end regions of the fibers including the contained cores or structures are produced. For each fiber, a brightness profile of a side view image is obtained at an axially offset position from the fiber end face. One or both fibers are rotated about their axes until the brightness profiles for each fiber indicate certain cores or structures in the fibers are aligned. For each fiber, an additional amount of twist from the offset position to the fiber end face is determined. One or both fibers are rotated again to compensate for the additional twist in each fiber, so that the fibers are aligned optimally when coupled. | 06-19-2014 |
20140248023 | FIBER COMPONENT AND LASER DEVICE - The fiber component of the present invention has a fusion splice section for connecting optical fibers. The optical fiber as the receiver of transmitted light is coated with at least two-layer resin. In the vicinity of the fusion splice section for connecting optical fibers, the innermost layer of a resin-coat section is uncovered with other resin coat at the boundary between the resin-coat section and resin-coat removed section of the optical fiber coated with two-layer resin. The structure effectively releases light and suppresses increase in temperature of the resin-coat section, protecting the optical fibers from burn-out. | 09-04-2014 |
20140286615 | SPLICE PROTECTOR FOR FIBER OPTIC RIBBONS - A fiber optic cable assembly includes first and second fiber optic ribbons and a splice protector. The ribbons are spliced together such that the corresponding spliced fibers at the splice have a common lengthwise axis, widthwise axis orthogonal to the lengthwise axis, and thickness axis orthogonal to the lengthwise and widthwise axes. The splice protector supports the ribbons that are spliced to one another at the splice. The splice protector may include or even consist essentially of an adhesive that provides a flexible support for the splice. The splice protector may be at least half as flexible when cured over the splice as the first and second ribbons in bending about the widthwise axis. | 09-25-2014 |
20140363133 | METHOD TO ALIGN OPTICAL FIBER FOR SPLICING - A method for aligning non-circular clad fiber whereby the alignment of the cross sectional profiles of non-circular fiber is accurately aligned before splicing. A method is provided to determine the correct rotational orientation of a fiber with non-circular cladding geometry so that the on screen position of the fiber core may be adjusted to present the flat side of the fiber cladding perpendicular to the imaging axis of the sensor. Once the fiber is clamped into the splicing apparatus multiple images at a series of different known rotational angles are captured. The images are processed to locate key fiber structural features. The relationship between the relevant structures is then processed mathematically to calculate a rotational angle that corresponds to a symmetrical positioning of the core as within the cladding image. The fiber is then rotated to the calculated rotational angle and the splice is completed. | 12-11-2014 |
20150010277 | OPTICAL DEVICE AND FIBER LASER DEVICE - An optical device includes a first medium which (i) has a refractive index lower than (a) a refractive index of an outermost shell part in a first outer shell removed area of a first optical fiber and (b) a refractive index of an outermost shell part in a second outer shell removed area of a second optical fiber and (ii) surrounds an entire side surface of the first outer shell removed area. Moreover, the optical device includes a second medium which (i) has a refractive index higher than a refractive index of an outermost shell part in the second outer shell removed area and (ii) surrounds at least a part of a side surface in the second outer shell removed area. The second outer shell removed area has a diameter larger than a diameter in the first outer shell removed area. | 01-08-2015 |
20150023638 | LOW LOSS PASSIVE OPTICAL HUB FOR USE IN THE PLASTIC OPTICAL FIBER NETWORKS - A node for a low loss passive optical hub is provided. The low loss passive optical hub includes a 1:N-split fiber and a plastic-optical fiber. The 1:N-split fiber has a fused-fractional end and N second-fractional ends. The 1:N-split fiber is formed from N sub-fibers. The N sub-fibers each have a first-fractional end and a second-fractional end. The N first-fractional ends are fused to form the fused-fractional end. The plastic-optical fiber has a first end and a second end. The first end of the plastic-optical fiber is optically coupled to the fused-fractional end of the 1:N-split fiber. | 01-22-2015 |
20150023639 | SIDE PUMP FIBER, METHOD OF MAKING SAME, AND OPTICAL DEVICES USING SAME - A side pump fiber and a method of making a side pump fiber are provided. A plurality of pump fibers can be joined to a side of a signal fiber, at different locations. The method includes creating a lengthwise, tapered, concave pocket cut in a pump (or side pump) fiber, inserting the signal fiber in the pocket cut, and then coupling the side pump fiber to the center fiber at the pocket cut. Optical amplifiers and lasers, as examples, can be made using the above method and side pump fibers. | 01-22-2015 |
20150030294 | EFFICIENT HEATING GROOVE FOR OPTICAL-FIBER FUSION SPLICER AND OPTICAL-FIBER FUSION SPLICER - An efficient heating groove for an optical fiber fusion splicer and an optical fiber fusion splicer. The heat substrate of the heating groove is a metal sheet with heat conducting property. The manufacture method of the heating groove comprises printing, in sequence, insulating medium, heating resistor, transition point conductor, and protection glass glaze on the outer surface of the heating substrate with heat conducting property. Two heating resistors, each with a resistance of 4.7±0.5Ω and power density of 10-20 W/cm | 01-29-2015 |
20150049991 | OPTICAL FIBER FUSION SPLICER - An optical fiber fusion splicer includes: a windshield cover that is formed so as to be openable and closable and that includes one or more cover members that cover a heat fusion portion in a closed state; a pair of fiber mounting portions that are provided on left and right sides of the heat fusion portion; a pair of fiber mounting detectors that are provided in the fiber mounting portions and that detect that an optical fiber has been mounted. Also, when both the fiber mounting detectors detect that the optical fibers have been mounted in a state where the cover member is open, an operation to close the cover member is performed, the fusion splice is performed, connection portion inspection is performed, and an operation to open the windshield cover is performed after the connection portion inspection is completed. | 02-19-2015 |
20150131950 | FIBER OPTIC SPLICE PROTECTOR FOR HARSH ENVIRONMENTS - An optical fiber cable for installation in a subterranean formation, where the temperature could be in excess of 150 degrees C. The optical fiber cable has an outer metallic jacket defining an elongated conduit with an internal elongated channel that receives an optical fiber. The optical fiber has two strands joined by a splice. A splice protector has a body with a passageway receiving the splice. The body has an outer region configured to be joined by a fusion weld to the outer metallic jacket. | 05-14-2015 |
20150139592 | OPTICAL FIBER LASER AND ANTI-REFLECTION DEVICE, AND MANUFACTURING METHOD THEREOF - An anti-reflection device, comprising: a first optical fiber, having a first optical fiber core; and a second optical fiber, having a second optical fiber core which is fusion spliced to the first fiber core to form a spliced point optical fiber core. Thereby, the present disclosure provides a method for manufacturing an anti-reflection device, comprising the step of: providing a fusion splicer to perform a parameter setup process upon at least one optical fiber so as to proceed with a splice process on the at least one optical fiber based on the result of the parameter setup process, while enabling an optical fiber alignment operation, an end surface preheating operation, an optical fiber splicing operation and an optical fiber fusion stretching operation during the proceeding of the splice process. | 05-21-2015 |
20150323741 | Optical Fiber End Face Processing Method, Optical Fiber End Face and Processing Apparatus - An optical fiber end face processing method, an optical fiber end face formed using the processing method and a processing apparatus used in the optical fiber end face processing method. The processing method comprises: chamfering and fusion splicing: providing a heat source to an optical fiber end face ( | 11-12-2015 |
20160062070 | FIBER OPTIC DISTRIBUTION CABLES AND STRUCTURES THEREFOR - A fiber optic distribution cable includes a jacket defining an exterior of the fiber optic distribution cable and a plurality of optical fibers extending through a cavity of the jacket. The jacket has an access location with a single opening formed in the jacket that extends to the cavity. A distribution optical fiber of the plurality of optical fibers extends through and protrudes from the single opening in the jacket at the access location. The length of the distribution optical fiber is at least 5/4 times the length of the single opening. | 03-03-2016 |
20160139336 | High Efficiency Pump Signal Combiner For High Power Fiber Amplifier And Laser Applications - A high efficiency optical combiner minimizes core region distortions in the area where fusion splicing between an input tapered fiber bundle (or any other type of “cladding-less” input fiber) and output fiber are joined. The thickness of the output fiber's glass cladding layer in the splice region is reduced (if not removed altogether) so that a core-to-core splice is formed and any necked-down region where the glass flows to join the core regions (while also joining the outer diameters) is essentially eliminated. The reduction of distortions in the core region of the splice improves the transmission efficiency between an input tapered fiber bundle and output fiber, reaching a level of about 99%. This high efficiency optical combiner is particularly well-suited for applications where a number of pump sources are combined and applied as an input to a fiber laser or amplifier. | 05-19-2016 |
20160154182 | METHOD FOR MANUFACTURING OPTICAL FIBER COMBINER, OPTICAL FIBER COMBINER, AND LASER DEVICE | 06-02-2016 |
20160187584 | MULTICORE FIBER CONNECTION METHOD AND MULTICORE FIBER CONNECTOR USING SAME - A method of connecting multicore fibers | 06-30-2016 |
20170235054 | BASE MEMBER AND FUSION SPLICER | 08-17-2017 |