Entries |
Document | Title | Date |
20080226227 | Privacy in an Optical Fiber Link - Methods and apparatuses are described for providing privacy features on an optical fiber link. By providing such features, the effects on the optical fiber link by certain outside influences, such as acoustical waves, may be prevented from being remotely monitored from a position outside the link. | 09-18-2008 |
20080232739 | Tunable Dispersion and Dispersion Slope Compensator in Optical Telecommunication System - The present invention relates to a tunable dispersion and dispersion slope compensator based on an optical fiber grating in an optical communication system. The compensator includes: a first disk having a ring shape, wherein the first disk is configured to rotate; a second disk installed at an inner space of the first disk, wherein the second disk is configured not to rotate; a metal plate configured to bend as the first disk rotates; and an optical fiber grating adhered to the metal plate, wherein the optical fiber grating has different strains according to positions when the metal plate rotates. | 09-25-2008 |
20080240651 | Silicon waveguide dispersion compensator using optical phase conjugation - In the absence of using any chromatic dispersion compensation technique, it may be difficult to detect the transmitted data over long distances at the receiving end. Embodiments utilize the optical phase conjugation (OPC) property in silicon waveguides to compensate chromatic dispersion effect in optical fibers. | 10-02-2008 |
20080240652 | OPTICAL WAVEGUIDE - An optical waveguide includes a propagating light waveguide, a coupler including a photonic crystal, and a surface plasmon waveguide, the propagating light waveguide, the coupler, and the surface plasmon waveguide being disposed in one plane along a waveguiding direction. | 10-02-2008 |
20080273835 | Optical coupled resonator structures based on loop-coupled cavities and loop coupling phase - A resonator structure includes an input waveguide and an output waveguide. In one embodiment, the resonator structure also includes at least one resonator that couples the input waveguide to the output waveguide and a directional coupler that optically couples the input waveguide to the output waveguide. In another embodiment, the resonator structure includes a plurality of ring resonators that couple the input waveguide to the output waveguide. The plurality of ring resonators include a sequence of ring resonators that form a coupling loop. Each ring resonator in the sequence is coupled to at least two other ring resonators in the sequence and the first ring resonator in the sequence is coupled to the last ring resonator in the sequence so as to form the coupling loop. | 11-06-2008 |
20080285915 | Optical transmission system - An optical transmission system ( | 11-20-2008 |
20080285916 | All-Fiber Architecture for an Embedded Flight Sensor for Aeropropulsion Applications - An embedded flight sensor system having a laser and one or more flight sensors in optical communication with the laser plus a data processing device in optical communication with the flight sensors. The flight sensors may be laser based optical components such as a fiber Bragg grating in combination with an optical detector, a spectroscopy grating and detector or an optical detector associated with catch optics. The parameters sensed by the flight sensors may be used to determine any flight parameter. Representative flight parameters include but are not limited to an airframe or external surface temperature, airstream velocity, combustion zone temperature, engine inlet temperature, a gas concentration or a shock front position. | 11-20-2008 |
20080298744 | PHOTONIC CRYSTAL STRUCTURE AND METHOD OF MANUFACTURING THE SAME - A photonic crystal structure is provided the optical characteristics of which vary periodically in at least one direction, wherein the base material of the photonic crystal structure is formed of a dielectric material, a region containing at least one of molecules, atoms and ions different from the constituent element of the base material is provided in the base material, and the region is arranged in the base material so that the density of one of the molecules, atoms and ions varies periodically in the one direction. | 12-04-2008 |
20090003768 | METHOD AND APPARATUS FOR REDUCTION ON OPTICAL COUPLING BETWEEN PUMP LASERS AND PHOTODETECTORS IN OPTICAL AMPLIFIERS - In a first aspect, the present invention comprises an optical filter comprising a fiber having a core and a cladding and a light-absorbing coating applied onto a portion of the fiber cladding, the coating attenuating loosely bound cladding modes. In another aspect, the invention comprises a fiber amplifier apparatus comprising fibers for delivering pump laser light and for monitoring signal light and at least one photodetector optically coupled to a monitoring fiber, wherein either an optical filter is disposed between a monitoring fiber and a photodetector or at least one of the fibers has a core and a cladding and a light-absorbing coating applied onto a portion of the fiber cladding. A method in accordance with the present invention includes providing an optical amplifier having fibers for delivering pump laser light and for monitoring signal light, and applying a light-absorbing coating onto a portion of one of said fibers. | 01-01-2009 |
20090016676 | Optical element, optical module holder including optical element, optical module, and optical connector - An optical element, an optical module holder including the optical element, an optical module, and an optical connector are provided that can suppress, at a low cost, a change in an intensity of a light that is emitted from a photoelectric conversion:element and coupled to an end section of an optical transmission path, the change accompanying a change in an usage environment temperature, perform a stable optical communication having a superior heat resistance property at a low cost, and can achieve size reduction and improved versatility. | 01-15-2009 |
20090067783 | METHOD OF TUNING AN ADJUSTABLE DISPERSION COMPENSATOR - In the present invention, a method of controlling a tuneable optical dispersion compensating device to act on an optical signal by automatically controlling a plurality of dispersion control settings of the device in a systematic way using feedback, thereby to adapt freely the optical group delay for the optical signal within a predetermined wavelength range including that of the optical signal. | 03-12-2009 |
20090074355 | Photonically-coupled nanoparticle quantum systems and methods for fabricating the same - Various embodiments of the present invention are directed to photonically-coupled quantum dot systems. In one embodiment of the present invention, a photonic device comprises a top layer, a bottom layer, and a transmission layer positioned between the top layer and the bottom layer and configured to transmit electromagnetic radiation. The photonic devices may also include at least one quantum system embedded within the transmission layer. The at least one quantum system can be positioned to receive electromagnetic radiation and configured to emit electromagnetic radiation that propagates within the transmission layer. | 03-19-2009 |
20090116786 | Multi-Channel Dispersion Compensator - A multi-channel dispersion compensator comprising an optical signal waveguide that forms an input end for receiving an optical signal and an output end for providing a filtered optical signal. The multi-channel dispersion compensator also includes a series of closed-loop resonators providing frequency delay to at least one channel of the optical signal. The optical signal waveguide and each closed-loop resonator form a tunable coupler having a coupling value. The coupling value for each tunable coupler is selected to minimize constant dispersion and linear slope dispersion of the optical signal. Methods of fabrication and use are also described. | 05-07-2009 |
20090142018 | Method for incidence of light into a photonic crystal optical waveguide - Disclosed in a method and a device in which a wave number of light in the waveguide mode of a photonic crystal optical waveguide is matched with that of the incident light, or a intensity ratio of electric field to magnetic field of the light in the waveguide mode of the photonic crystal optical waveguide is matched with that of the incident light, and furthermore, in addition to the method above, the distribution of light intensity on the incident end surface in the waveguide mode of the photonic crystal optical waveguide is matched with that of the incident light. A photonic crystal optical waveguide and channel optical waveguide are joined together, and the structure of the channel optical waveguide is wedge shaped in the joint section. | 06-04-2009 |
20090202201 | MODE SELECTIVE FIBER STUB, A TRANSMITTER OPTICAL SUBASSEMBLY THAT INCORPORATES THE STUB AND METHODS FOR MAKING THE MODE SELECTIVE FIBER STUB - A fiber stub assembly is provided that has a cladding layer that is reduced in diameter near the end of the stub into which light is launched from a light source. The portion of the stub having the cladding layer with the reduced diameter is surrounded by a light-absorbing material that is in contact with the inner surface of the ferule and with the outer surface of the cladding layer. The light-absorbing material and the outer surface of the cladding layer have indices of refraction that are matched, or very close to one another, such that any modes of light that are propagating in the cladding layer that impinge on the interface propagate into the light-absorbing material and are absorbed thereby. The reduced diameter of the cladding layer and the surrounding light-absorbing material form a pin hole opening through which light is received. The pin hole opening makes it possible to use a simple ball lens to focus light from the light source into the end of the fiber stub to thereby reduce the number of modes that are dispersed into the cladding layer. | 08-13-2009 |
20090263081 | BI-DIRECTIONAL SIGNAL INTERFACE WITH ENHANCED ISOLATION - A bi-directional signal interface includes a carrier signal source that generates a carrier traveling wave at an output. A first traveling wave structure includes a first and a second waveguide having an input that is coupled to the output of the carrier signal source. The first and second waveguide propagate the carrier traveling wave. A second traveling wave structure includes an outgoing signal port that receives an outgoing signal and a bi-directional signal port that receives an incoming electrical signal and provides the outgoing signal. The first and second traveling wave structures have an electromagnetic interaction region with a geometry that is chosen for a desired outgoing-to-incoming signal isolation. A detector having an input coupled to the output of the first traveling wave structure generates an electrical signal related to the incoming electrical signal. | 10-22-2009 |
20090310912 | INTEGRATED WAVELENGTH LOCKER AND MULTIPLEXER - An etched grating based chip provides a portion of each of a plurality of input optical signals from a plurality of laser diodes as optical feedback to the plurality of laser diodes, and couples the remaining light from the laser diodes onto an optical fiber, all the while maintaining a small form-factor, and meeting strict conditions regarding laser beat frequency. The present invention is applicable for both a single laser diode at a single wavelength and for an array of diodes at multiple wavelengths, which are multiplexed together in accordance with the present invention. The economics of laser diodes is much improved by decoupling the wavelength locking segment from the gain segment of the diode. Furthermore, the additional wavelength stability of such a locked diode will improve the performance and the economics of the network. | 12-17-2009 |
20100002991 | Substrate Guided Relay with Polarization Rotating Apparatus - A substrate guided relay ( | 01-07-2010 |
20100002992 | Pumping In A Higher-Order Mode That Is Different From A Signal Mode - The present disclosure provides an approach to more efficiently amplify signals by matching either the gain materials or the pump profile with the signal profile for a higher-order mode (HOM) signal. By doing so, more efficient energy extraction is achieved. | 01-07-2010 |
20100014807 | LASER BEAM MIXING APPARATUS AND METHOD OF SEALING ORGANIC LIGHT EMITTING DIODE DISPLAY USING THE SAME - A laser beam mixing apparatus to convert a laser beam bundle into a single laser beam having a uniform energy density. The laser beam mixing apparatus includes: a barrel to adjust a distance between a multi-core optical cable and an optical lens included therein, to convert a laser beam bundle into a single beam; and a stage to adjust the position and angle a single-core optical cable with respect to the optical lens, to align the core of the single-core optical cable with the center of the single beam. | 01-21-2010 |
20100040326 | VISUAL EXTENDER FOR PORTABLE DEVICES - A portable electronic system comprises a portable electronic device having a screen and a visual extender. The visual extender has a thin film element and is coupled to the portable electronic device, positioning the thin film element to provide visual extension of the screen of the portable electronic device. | 02-18-2010 |
20100046886 | PLANAR POLARIZATION SPLITTER - An apparatus comprising a planar optical structure that includes an input coupler, first and second planar waveguides and an output coupler, all on a planar substrate. The input coupler is configured to divide an incoming light into two input light beams. Each of the first and second waveguides is configured to receive one of the two input light beams. The first waveguide has a first core with a width that is greater than a width of a second core of the second waveguide. At least one of the first or second planar waveguides is birefringent. The output coupler is configured to receive the light beams after passage through the first and second waveguides. A first output light beam from the output coupler is substantially TE polarized light and a second output light beam from the output coupler is substantially TM polarized light. | 02-25-2010 |
20100135613 | OPTICAL WAVEGUIDE, OPTICAL WAVEGUIDE MODULE, AND ELECTRONIC APPARATUS - A light guide includes a core and a clad made of a material having an index of refraction different from an index of refraction of the core and covering the core, in which at least one of a light incident surface or a light exit surface of the core is arranged while shifted in parallel without changing respective inclined angles so that the inclined surface is divided into a plurality of inclined surfaces parallel in a longitudinal direction (X direction) of the rectangular shape in the orthogonal projection and the plurality of inclined surfaces closer to the light emitting portion are positioned in a direction (Z direction) of moving away from the end face to be in a shape extending in the direction (Z direction) of moving away from the end face in a stepwise manner as a whole. | 06-03-2010 |
20100239206 | ARRAY OF WAVEGUIDES MAKING IT POSSIBLE TO DEFLECT A LIGHT BEAM - The invention relates to an array of waveguides ( | 09-23-2010 |
20100247035 | OPTICAL WAVEGUIDE, OPTICAL WIRING MEMBER, AND METHOD OF MOUNTING OPTICAL DEVICE ON OPTICAL WIRING MEMBER - An optical wiring member according to the present invention includes: a substrate on which a light-emitting device and a light-receiving device are mounted; and an optical waveguide comprising a communication optical waveguide core and an optical waveguide clad that entirely covers the communication optical waveguide core, the optical waveguide being mounted on the substrate, in which the optical waveguide is equipped with a position-aligning light guiding portion for introducing position-aligning light into the communication optical waveguide core. By using, as a target light, the position-aligning light that is introduced into the communication optical waveguide core | 09-30-2010 |
20100272391 | CHROMATIC DISPERSION COMPENSATOR - There is provided a chromatic dispersion compensator, which includes an optical circulator optically coupled to an input port and an output port, a chromatic dispersion compensation unit; including, and a light excitation source for supplying, to a light waveguide, excitation light. The chromatic dispersion compensation unit includes a light waveguide doped with the rare earth ion, a grating unit including a grating formed in at least a part of the longitudinal direction of the light waveguide, where the grating unit performing a chromatic dispersion compensation for a signal light input via the optical circulator to a one end of the light waveguide through the input port by reflecting the signal light flowing through the light waveguide according to a wavelength of the signal light and by returning the reflected signal light to the one end to lead to the output port via the optical circulator. | 10-28-2010 |
20100310209 | Apparatus for Transforming The Aspect Ratio of An Optical Input Field Based On Stacked Waveguides - An apparatus consisting of stacked slab waveguides whose outputs are vertically staggered is disclosed. At the input to the stacked waveguides, the entrances to each slab lie in approximately the same vertical plane. A spot which is imaged onto the input will be transformed approximately to a set of staggered rectangles at the output, without substantial loss in brightness, which staggered rectangles can serve as a convenient input to a spectroscopic apparatus. A slit mask can be added to spatially filter the outputs so as to present the desired transverse width in the plane of the spectroscopic apparatus parallel to its dispersion. | 12-09-2010 |
20110044579 | EFFICIENT COLLIMATION OF LIGHT WITH OPTICAL WEDGE - Embodiments of optical collimators are disclosed. For example, one disclosed embodiment comprises an optical waveguide having a first end, a second end opposing the first end, a viewing surface extending at least partially between the first end and the second end, and a back surface opposing the viewing surface. The viewing surface comprises a first critical angle of internal reflection, and the back surface is configured to be reflective at the first critical angle of internal reflection. Further, a collimating end reflector comprising a faceted lens structure having a plurality of facets is disposed at the second end of the optical waveguide. | 02-24-2011 |
20110103742 | PLASMON WAVEGUIDE AND OPTICAL ELEMENT USING THE SAME - Disclosed is a plasmon waveguide including cladding ( | 05-05-2011 |
20110158583 | OPTICAL SPLITTER ASSEMBLY - Optical splitter assemblies are provided. An assembly may include a housing, one or more fanout elements, an optical splitter element, an input fiber and a plurality of output fibers. The input fiber extends from an input opening of the housing to the optical splitter element. The input fiber carries an input signal to the optical splitter element and the optical splitter element splits the input signal into a plurality of output signals to be carried by the plurality of output fibers. Each of the output fibers extends from the optical splitter element to beyond a plurality of output openings of the housing. Each of the fanout elements defines one or more channels for supporting the input or output fibers. The assembly may further include tubular members for further support to the fibers. The fibers extend from the openings of the housing to the optical splitter element free of any loops. | 06-30-2011 |
20110176766 | OPTICAL FIBER CONNECTION STRUCTURE AND SINGLE-MODE FIBER - An optical fiber connection structure which reduces MPI in the use of an optical fiber with a bend resistance improved by forming holes in the fiber, and a single-mode fiber which reduces MPI are provided. A second cladding portion of a second single-mode fiber | 07-21-2011 |
20110176767 | OPTICAL FIBER CONNECTION STRUCTURE - An optical fiber connection structure reducing MPI is provided. An intervening optical fiber | 07-21-2011 |
20110194812 | MICROSTRUCTURED OPTICAL FIBER AND A DEVICE FOR GENERATING BROADBAND WHITE LIGHT - A microstructured optical fiber for generating broadband white light having a core doped with germanium and silica cladding surrounding the core, the cladding including a plurality of holes arranged in the form of a regular mesh, wherein the diameter F of a hole in the cladding, the pitch L between the respective centers of two neighboring holes in the cladding, and the refractive index difference Dn between the germanium-doped fiber core and the silica of the cladding are such that the fiber can generate white light on the fundamental mode over a wavelength band having a width of at least 1000 nm. | 08-11-2011 |
20110235967 | LIGHT TRANSMISSION ASSEMBLY - A light transmission assembly includes a light circuit board and a light transmission module. The board is embedded with waveguide layers, the waveguides layers includes core wires and shielding lays sandwiching the core wires, the waveguide layers defines a second light port portion of which the core wires defines vertical end faces. The light transmission module includes a base and a first light port portion projecting from a first face of the base, the first light port portion defines vertical end faces, the base defines a slanting surface at a second face opposite to the first face thereof. The first and second light port portions are aligned with each other when the light transmission module is coupled with light circuit board so that light lines go directly from the core wires through the light transmission module and reflect at the slant surface. | 09-29-2011 |
20110249935 | METHOD AND APPARATUS FOR IN-LINE FIBER-CLADDING-LIGHT DISSIPATION - Apparatus and method for in-line cladding-light dissipation including forming a light-scattering surface on the optical fiber such that the light-scattering surface scatters cladding light away from the optical fiber. In some embodiments, the apparatus includes an optical fiber having a core and a first cladding layer that surrounds the core, wherein a first portion of the optical fiber has a light-scattering exterior surface. Some embodiments further include a transparent enclosure, wherein the transparent enclosure includes an opening that extends from a first end of the transparent enclosure to a second end of the transparent enclosure, and wherein at least the first portion of the optical fiber is located within the opening of the transparent enclosure. Some embodiments include a light-absorbing housing that surrounds the optical fiber and the transparent enclosure and is configured to absorb the light scattered away from the optical fiber by the light-scattering exterior surface. | 10-13-2011 |
20110255827 | CONNECTORS AND CABLES WITH AN OPTICAL TRANSMITTER - Cable adapters and connectors receive electrical signals and output optical signals. A cable adapter can receive various data signals in multiple interface protocols at a first electrical connector and provide an optical signal at a second connector. The conversion of electrical signals to optical signals may be achieved at various locations in the cable adapter. A connector can include an optical transmitter for converting electrical signals into optical signals. Such a connector can be provided on an output end of a cable adapter to provide optical signals corresponding to electrical signals received at an input connector of the cable adapter. | 10-20-2011 |
20110274390 | SURFACE-PLASMON-POLARITONS TUNABLE OPTICAL RESONANT RING FILTER - A surface-plasmon-polaritons (SPPs) tunable optical resonant ring filter that includes an SPPs waveguide, an SPPs tunable directional coupler, and an SPPs tunable resonant ring. The tunabilities of the resonant frequency, the resonant depth, and the filtering bandwidth are achieved by tuning the loss and transmission phase of the resonant ring and the coupling ratio of the directional coupler. Since the metal core layer of the SPPs waveguide is capable of multiplexing electro-optical signals, the SPPs tunable optical resonant ring filter can be used not only in an integrated optics system, but also in an integrated electro-optics hybrid system. | 11-10-2011 |
20110274391 | SYSTEM AND METHODS FOR ROUTING OPTICAL SIGNALS | 11-10-2011 |
20110280514 | OPTICAL RECEPTION MODULE AND METHOD OF MANUFACTURING OPTICAL RECEPTION MODULE - At the time of assembly of an optical transmission/reception module, a test variable wavelength light source | 11-17-2011 |
20110286696 | WAVELENGTH CONTROL DEVICE AND WAVELENGTH CONTROL METHOD - The wavelength control device comprises a first Mach-Zehnder filter which receives a first optical signal and outputs an optical signal having a predetermined wavelength, a second Mach-Zehnder filter which receives a second optical signal and outputs an optical signal having a predetermined wavelength, a heating unit heating respective parts of either one of the waveguides of the first and second Mach-Zehnder filters, a first wavelength detecting unit which receives an optical signal from the first Mach-Zehnder filter and detects a wavelength thereof, a second wavelength detecting unit which receives an optical signal from the second Mach-Zehnder filter and detects a wavelength thereof, a power control unit which controls power supplied to the heating unit based on the wavelength received from the first wavelength detecting unit, and an output unit which outputs a wavelength value based on the wavelength received from the second wavelength detecting unit. | 11-24-2011 |
20120002919 | FIBEROPTIC DEVICE WITH LONG FOCAL LENGTH GRADIENT-INDEX OR GRIN FIBER LENS - Embodiments of the invention provide a fiberoptic device that uses a gradient-index (GRIN) lens for focusing a light beam emitted by an optical fiber, but achieves a substantially longer focal length than that of a GRIN lens alone by placing a beam expander (e.g., no core fiber or step-index multimode fiber) between the terminal end of the optical fiber and the GRIN lens to simulate free space therebetween. In one embodiment, a fiberoptic device comprises an optical fiber having a fiber core and an end through which a light beam emits from the fiber core; a beam expander having a first end coupled to the end of the optical fiber and having a second end, the beam expander permitting the light beam emitting from the fiber core to pass from the first end to the second end and to expand from the first end to a larger size at the second end; and a gradient-index fiber lens coupled to the second end of the beam expander to receive the light beam from the beam expander and focus the light beam. | 01-05-2012 |
20120020616 | Colorless Optical Network Architecture And Network Components - An array reflector comprising a waveguide and a high reflectivity mirror is disclosed. The waveguide has an input end and a reflective end. The high reflectivity mirror is disposed at the reflective end. The array reflector also includes n−1 mirrors arrayed along the length of the waveguide, wherein n is an integer greater than two. | 01-26-2012 |
20120027343 | WAVELENGTH DIVISION MULTIPLEX OPTICAL REGENERATION SYSTEM AND WAVELENGTH DIVISION MULTIPLEX OPTICAL REGENERATION METHOD - An optical regeneration system for regenerating a degenerated signal light, comprising a regeneration device having at least one of a soliton converter, a pulse roller, a Kerr-shutter and a soliton purifier. The solilton converter uses an anomalaous-dispersion fiber (ADF) having a fiber length up to three times the soliton frequency, and the pulse roller is provided with a pulse roller fiber having high non-linear characteristics. The Kerr-shutter comprises an optical LO (local oscillation) generator for generating an optical LO on an OPLL (optical phase locked loop), a phase comparator for detecting the phase difference between an externally-input signal light and an optical LO, and a control unit for regulating the repeated frequency of an optical LO based on the phase difference. The soliton purifier has a soliton fiber disposed between two optical fibers. | 02-02-2012 |
20120057819 | PHOTONIC DEVICES HAVING DEGENERATE OR SPLIT SPECTRAL BAND EDGES AND METHODS FOR USING THE SAME - Provided herein are photonic devices configured to display photonic band gap structure with a degenerate or a split band edge. Electromagnetic radiation incident upon these photonic devices can be converted into a frozen mode characterized by a significantly increased amplitude, as compared to that of the incident wave. The device can also be configured as a resonance cavity with a giant transmission band edge resonance. In an exemplary embodiment, the photonic device is a periodic layered structure with each unit cell comprising at least two anisotropic layers with misaligned anisotropy. The degenerate or split band edge at a given frequency can be achieved by proper choice of the layers' thicknesses and the misalignment angle. In another embodiment, the photonic device is configured as a waveguide periodically modulated along its axis. | 03-08-2012 |
20120093460 | LIGHT GUIDE FOR ILLUMINATION - It is presented a light guide ( | 04-19-2012 |
20120099815 | COLLIMATING COUPLER FOR LASER TREATMENT DEVICES - Electromagnetic energy generated by a collection of individual laser modules is coupled by corresponding individual waveguides to an input of a multi-lumen ferrule. The energy is conveyed from an output of the multi-lumen ferrule to collimating and converging assemblies before being transmitted to a trunk fiber and thence to a laser handpiece. | 04-26-2012 |
20120114283 | OPTICAL CONNECTOR - An optical connector is disclosed. The optical connector includes a cable having formed therein an optical waveguide, a plug having the cable connected thereto, and a connector housing configured to mount thereon the plug. The cable is provided with a cable-side guide portion. The plug is provided with a plug housing which has a plug-side guide portion and is attached to the cable. Either one of the cable-side guide portion and the plug-side guide portion is configured as a protrusive convex portion, and the other guide portion is configured as a concave portion so that the convex portion is press-fitted into the concave portion, thereby achieving a positioning of the cable and the plug housing. | 05-10-2012 |
20120128298 | LIGHT-GUIDE MODULE - A light-guide module includes a light-guide strip having opposite first and second ends, a light-entry surface disposed at the first end, a light-exit surface extending between the first and second ends, and first and second working surfaces disposed parallel to each other and extending between the first and second ends. One of the first and second working surfaces defines a light-scatter zone and includes a plurality of micro-scatter structures that are disposed within the light-scatter zone and that configure the light-scatter zone with a light-scattering ability that varies from the first end to the second end. The light-guide module also includes a reflecting element disposed to reflect light that exits from the light-guide strip via the first and second working surfaces back into the light-guide strip via the first and second working surfaces, respectively. | 05-24-2012 |
20120257854 | NANOTUBE BASED OPTICAL FUSE DEVICE AND METHOD - An optical fuse or energy-switching-off device includes an optical waveguide having an input section and an output section, the two sections forming a pair of opposed surfaces extending transversely through the axes of the waveguide sections. A substantially transparent material is disposed between the opposed surfaces and comprises an electrically conductive nanotube web immersed in dielectric material, where the nanotubes are not in electrical contact with each other. The substantially transparent material forms a plasma when exposed to optical signals propagating within the optical waveguide with an optical power level above a predetermined threshold, and the plasma damages the opposed surfaces sufficiently to render the surfaces substantially opaque to light propagating within the input section of the optical waveguide so as to prevent the transmission of such light. | 10-11-2012 |
20130108216 | OPTICAL FIBER HAVING CORE-TO-CORE ALIGNMENT | 05-02-2013 |
20130136395 | OPTICAL FIBER TRANSMITTING SYSTEM - An optical fiber transmitting system including a first Optical/Electrical (O/E) module, a first interface, a second interface, a fiber cable and a second Optical/Electrical (O/E) module is provided. The first O/E module includes a laser diode (LD) configured to emit laser optical signals. The fiber cable includes two pieces of optical fiber and a third piece of optical fiber for transmitting the laser optical signals to the second O/E module via the first interface and the second interface. The second O/E module includes a photo-detector (PD) configured to convert the laser optical signals into electronic signals to supply power energy to a peripheral device. | 05-30-2013 |
20130142480 | METHOD AND APPARATUS FOR IMPLEMENTING A RECTANGULAR- CORE LASER BEAM-DELIVERY FIBER THAT PROVIDES TWO ORTHOGONAL TRANSVERSE BENDING DEGREES OF FREEDOM - In various embodiments, an optical fiber module including an optical fiber having a first end, a second end, and a twisted portion between the first and second ends to enable the optical fiber to provide two orthogonal transverse bending degrees of freedom. The twisted portion induces an optical distortion. The module further includes a distortion compensation arrangement that is configured to at least partially compensate for the optical distortion and a housing that is configured to house at least a portion of the optical fiber including the twisted portion. | 06-06-2013 |
20130148924 | LIGHT GUIDE DEVICE AND MANUFACTURING METHOD THEREOF - A light guide device includes a light guide plate, a diffusion layer, and a brightening layer. The light guide plate includes a first surface, a second surface opposite to the first surface, and diffusion pots positioned on the first surface. The diffusion layer is adhered to the second surface of the light guide plate, and includes transparent adhesive and diffusion particles scattered in the transparent adhesive. The brightening layer is adhered to the diffusion layer, and includes a micro structure formed on a surface of the brightening layer facing away from the diffusion layer. The micro structure includes a number of cutouts. A manufacturing method for the light guide device is also provided. | 06-13-2013 |
20130148925 | VARYING BEAM PARAMETER PRODUCT OF A LASER BEAM - An optical delivery waveguide for a material laser processing system includes a small lens at an output end of the delivery waveguide, transforming laser beam divergence inside the waveguide into a spot size after the lens. By varying the input convergence angle and/or launch angle of the laser beam launched into the waveguide, the output spot size can be continuously varied, thus enabling a continuous and real-time laser spot size adjustment on the workpiece, without having to replace the delivery waveguide or a process head. A divergence of the laser beam can also be adjusted dynamically and in concert with the spot size. | 06-13-2013 |
20130163922 | LIGHT-GUIDING COVER STRUCTURE - A light-guiding cover structure includes a top cover unit and a light-guiding unit. The top cover unit has a plurality of receiving spaces formed therein. The light-guiding unit includes a plurality of light-guiding groups, wherein each light-guiding group includes a plurality of optical fiber cables received in the corresponding receiving space, and each optical fiber cable has two opposite ends exposed from the bottom surface of the top cover unit and respectively facing at least one light-emitting device and at least one light-sensing device that have been disposed under the top cover unit. Therefore, the optical fiber cables received in the corresponding receiving space, thus when the light-guiding cover structure is applied to the LED package chip classification system, the aspect of the LED package chip classification system can be enhanced. | 06-27-2013 |
20130195403 | APPARATUS AND METHOD FOR IN-LINE FIBER-CLADDING-LIGHT DISSIPATION - Apparatus and method for in-line cladding-light dissipation including forming a light-scattering surface on the optical fiber such that the light-scattering surface scatters cladding light away from the optical fiber. In some embodiments, the apparatus includes an optical fiber having a core and a first cladding layer that surrounds the core, wherein a first portion of the optical fiber has a light-scattering exterior surface. Some embodiments further include a transparent enclosure, wherein the transparent enclosure includes an opening that extends from a first end of the transparent enclosure to a second end of the transparent enclosure, and wherein at least the first portion of the optical fiber is located within the opening of the transparent enclosure. Some embodiments include a light-absorbing housing that surrounds the optical fiber and the transparent enclosure and is configured to absorb the light scattered away from the optical fiber by the light-scattering exterior surface. | 08-01-2013 |
20130266258 | Apparatus For Transforming The Aspect Ratio Of An Optical Input Field Based On Stacked Waveguides - An apparatus consisting of stacked slab waveguides whose outputs are vertically staggered is disclosed. At the input to the stacked waveguides, the entrances to each slab lie in approximately the same vertical plane. A spot which is imaged onto the input will be transformed approximately to a set of staggered rectangles at the output, without substantial loss in brightness, which staggered rectangles can serve as a convenient input to a spectroscopic apparatus. A slit mask can be added to spatially filter the outputs so as to present the desired transverse width in the plane of the spectroscopic apparatus parallel to its dispersion. | 10-10-2013 |
20130272652 | METHODS AND APPARATUS FOR VERTICAL COUPLING FROM DIELECTRIC WAVEGUIDES - A frequency-chirped nano-antenna provides efficient sub-wavelength vertical emission from a dielectric waveguide. In one example, this nano-antenna includes a set of plasmonic dipoles on the opposite side of a SiYV | 10-17-2013 |
20130322816 | SPOT SIZE CONVERTER AND METHOD FOR MAKING THE SAME - In order to provide a spot size converter and a method for making the same which enable the optical connection with low loss and are able to reduce the excess loss for the position misalignment in mounting, a spot size converter according to an exemplary aspect of the present invention includes: a substrate on which an optical waveguide including a first core is laminated and which includes a notch; a core reducing part which is formed so that a cross-section area of the first core may gradually decrease toward an end part of the first core in the direction of light propagation; a second core which surrounds the core reducing part and is made of a material whose refractive index is smaller than that of the first core; a peripheral clad which surrounds the second core and is made of a material whose refractive index is smaller than that of the second core; and a lower clad which is formed in a lower part of the second core and includes the peripheral clad; wherein the lower clad is formed in the notch. | 12-05-2013 |
20140029893 | METHODS AND SYSTEMS FOR DELAYING OPTICAL WAVES - Coupled-resonator optical waveguides (CROW) can be used to control a speed of an optical signal. In particular, the coupling distance between the resonators can be adjusted to precisely control a group delay of an optical wave. Systems and methods are described to control such coupling distance in a CROW. | 01-30-2014 |
20140212089 | ACTUATOR SYSTEMS FOR DEFLECTING OPTICAL WAVEGUIDES, AND DEVICES FOR PROCESSING OPTICAL SIGNALS COMPRISING SAME - Actuator systems ( | 07-31-2014 |
20140212090 | Optical Waveguides - An optical waveguide includes a coupling optic and a waveguide body. According to one embodiment, the body includes a first curved surface that extends between an input surface and an end surface and a second surface opposite the first surface. The input surface has a first thickness disposed between the first and second surfaces and the end surface has a second thickness disposed between the first and second surfaces less than the first thickness. | 07-31-2014 |
20140212091 | OPTICAL PROBE - Provided is an optical probe that can perform low-noise precise OCT measurement even if an object with a high scattering property is measured. The optical probe | 07-31-2014 |
20140219606 | MULTIMODE FIBER FOR MODULATABLE SOURCE - A modulatable source is to generate a signal. A multi-mode fiber is to propagate the signal. The fiber is associated with a fiber d*NA, corresponding to a product of a fiber diameter (d) and a fiber numerical aperture (NA), substantially between 1 micron radian and 4 micron radian. A receiver is to receive the propagated signal. | 08-07-2014 |
20140233885 | PHOTON-TO-PLASMON COUPLER - An embodiment of the present invention relates to a photon-to-plasmon coupler for converting photons to plasmons or vice versa, said photon-to-plasmon coupler comprising
| 08-21-2014 |
20140307999 | CHARGE-DISCHARGE ELECTRO-OPTICAL MICRORING MODULATOR - An apparatus includes an optical ring resonator, first and second optical couplers, and control circuitry. The first optical coupler is configured to modulate an input optical signal traversing an optical waveguide, by tuning cross-coupling of energy between the optical waveguide and the ring resonator with a first variable coupling coefficient. The second optical coupler is configured to tune cross-coupling of energy between the ring resonator and an auxiliary optical signal, different from the input optical signal, with a second variable coupling coefficient. The control circuitry is configured to modulate the first coupling coefficient with a first control signal so as to modulate the input optical signal, and to modulate the second coupling coefficient with a second control signal, so as to retain a constant electrical-field complex envelope in the ring resonator. | 10-16-2014 |
20140334776 | OPTICAL COMPONENT INCLUDING INTERFERENCE FILTER - An optical component including an interference filter which is less likely to generate back reflected light, where the filter is accommodated in a hollow cylindrical housing and is tilted with respect to the optical axis. The housing has front and back openings. First and second collimator lenses respectively face the front and back openings. The housing includes a filter housing section and first and second cylindrical optical path sections extending in the front-back direction respectively from the front and back openings to the filter housing section while maintaining the shape of each opening. The diameter of the opening of the first optical path section is smaller than the apparent diameter of the first collimator lens. When light is input from the front along the optical axis, light of prescribed wavelengths is output to the back. Light reflected by the filter travels toward the inside of the first optical path section. | 11-13-2014 |
20150316721 | FIBER OPTIC DIELECTRIC WAVEGUIDE STRUCTURE FOR MODAL MUTLIPLEXED COMMUNICATION AND METHOD OF MANUFACTURE - A novel optical fiber end structure and method for creating same in which an optical fiber end structure may comprise a cylindrical wedge having a planar surface angled with respect to the longitudinal axis of the optical fiber and a flat surface that is generally perpendicular with the longitudinal axis of the optical fiber. The device and method of the invention may employ a single or plurality of mechanically polished wedges on the end or ends of an optical fiber, which may, in a best mode, be a few mode fiber. The method and device of the invention may be used to independently modulate standing waves or linearly polarized waves, or both, allowing for a modal multiplexed system. The invention radiates independent standing wave modes and/or linearly polarized modes from the dielectric waveguide structure, and may be employed in single, few mode or multimode optical fibers. | 11-05-2015 |
20150331205 | SYSTEMS AND METHODS FOR LASER SYSTEMS WITH VARIABLE BEAM PARAMETER PRODUCT - In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a radiation beams before the beam is coupled into an optical fiber or delivered to a workpiece. | 11-19-2015 |
20160028204 | Bright Few-Cycle Fiber Source using Resonant Dispersive Wave Emission in an Optical Fiber - Methods and apparatus for generating ultrashort optical pulses. Pulses of an infrared source are launched into an optical fiber characterized by a zero-dispersion wavelength (ZDW), where the wavelength of the infrared source exceeds the ZDW of the optical fiber by at least 100 nm. A resonant dispersion wave (RDW) is generated in the optical fiber that has a central wavelength blue-shifted by more than 500 nm relative to the pump wavelength, and, in some cases, by more than 700 nm. The optical fiber has a core of a diameter exceeding the central wavelength of the RDW by at least a factor of five. In a preferred embodiment, the infrared source includes a master-oscillator-power-amplifier, embodied entirely in optical fiber, and may include an Erbium:fiber oscillator, in particular. | 01-28-2016 |
20160077280 | FLUORESCENCE EXCITATION ILLUMINATION FIBER - Fluorescence imaging illumination fiber including a first fiber, a second fiber, and a diffuser, the second fiber concentrically enfolding the first fiber, the diffuser is coupled at the end of the first fiber and the second fiber, the first fiber having a first angular output, the second fiber having a second angular output, the diffuser increasing the first angular output by a first value and increasing the second angular output by a second value, the first value exceeding the second value. | 03-17-2016 |
20160085029 | OPTICAL WAVEGUIDE LENS AND OPTICAL COUPLING MODULE INCORPORATING THE SAME - An optical waveguide lens includes a substrate, and a planar waveguide and a media grating formed on the substrate in sequence. The media grating includes a first group of gratings located adjacent to the light source and a second group of gratings away from the light source. The first group of gratings and the second group of gratings each include a plurality of strip-shaped films arranged in parallel. The first group of gratings and the planar waveguide under the first group of gratings cooperatively define a first waveguide section. The second group of gratings and the planar waveguide under the second group of gratings cooperatively define a second waveguide section. Light radiated from a light source passes through the optical waveguide lens and is successively converged by the first waveguide section and the second waveguide section. An optical coupling module incorporating the optical waveguide lens is also provided. | 03-24-2016 |
20160109653 | OPTICAL INTERCONNECTS AND METHODS OF FABRICATING SAME - An embodiment provides an optical interconnect comprising first and second planar metallization layers, a glass substrate disposed between at least portions of the first and second metallization layers, an aperture in the second metallization layer having a first and second ends, and a polymer waveguide having a first end adjacent the first end of the aperture. The first end of the waveguide can have a first edge defining a first acute angle with respect to a top surface of the waveguide. The first end of the optical waveguide can be configured to receive an optical signal traversing through the glass substrate from a source proximate a first position on a top surface of the glass substrate and direct the optical signal with the first edge in a direction parallel to the glass substrate towards a second end of the waveguide. | 04-21-2016 |
20220137298 | SINE-COSINE OPTICAL FREQUENCY DETECTION DEVICES FOR PHOTONICS INTEGRATED CIRCUITS AND APPLICATIONS IN LIDAR AND OTHER DISTRIBUTED OPTICAL SENSING - The disclosed technology can be implemented in photonics integrated circuit (PIC) to provide an optical frequency detection device for measuring an optical frequency of light using two Mach-Zehnder interferometer where the delay imbalance in the first interferometer is configured to be one quarter wavelength longer than that of the second interferometer to produce an additional phase difference between the two arms. The two outputs of each interferometer are then detected by two photodetectors to produce two complementary interference signals. The difference between the two complementary interference signals of the first interferometer is a sine function of the optical frequency while the difference between the two complementary interference signals of the second interferometer is proportional to a cosine function of the optical frequency. Using the sine/cosine interpretation algorithm commonly used for the rotation encoders/decoders, any increments in optical frequency can be readily obtained. | 05-05-2022 |