Class / Patent application number | Description | Number of patent applications / Date published |
385032000 | Coupling light through a waveguide bend or loop | 35 |
20080219621 | Point-To-Point Optical Fibre Link - Point-to-point link for the transmission of digital signals includes two opto-electronic conversion apparatuses and an optical cable including at least one optical fiber having two terminal portions, each opto-electronic conversion apparatus including an opto-electronic device optically coupled to a respective terminal portion between the two terminal portions of the at least one optical fiber, wherein at least one of the two opto-electronic conversion apparatuses is adapted to keep the respective terminal portion of the optical fiber in bent position with a bending radius R, where 1.5 mm≦R≦2.5 mm, and to keep the respective opto-electronic device optically coupled to the bent terminal portion in order to allow the transmission of the digital signals between the optical fiber and the at least one of the two opto-electronic conversion apparatuses; and at least the bent terminal portion of the at least one optical fiber is such as to satisfy the following relationship r/R<0.07*n/(35+n), where n is the stress corrosion susceptibility factor and r is the radius of the cladding of the optical fiber. | 09-11-2008 |
20080260328 | LED LIGHT EXTRACTION BAR AND INJECTION OPTIC FOR THIN LIGHTGUIDE - An optical system for back-illuminating a display has a lightguide having a confinement direction and a first plurality of light sources disposed proximate a first edge of the lightguide. Light from at least one of the light sources defines an emission axis which is approximately parallel to the confinement direction. A solid light injector is disposed to couple light from the light sources into the lightguide. A surface of the light injector may be shaped as a confinement curve for confining light from the first plurality of light sources in the confinement direction by total internal reflection. In some embodiments a portion of the illumination light from the one or more light sources enters the first light injector along a direction having a component directed away from the lightguide and is totally internally reflected within the injector. | 10-23-2008 |
20080260329 | LIGHTGUIDES HAVING CURVED LIGHT INJECTORS - An optical system has a lightguide having a confinement direction and a first light source disposed proximate a periphery of the lightguide. A light injector is disposed to couple light from the first light source into the lightguide. The light injector has a surface formed with a confinement curve for confining light in the confinement direction. The light injector may be disposed at either a recess on the periphery of the lightguide or at a cut corner of the lightguide. A refractive structure, having at least one surface non-perpendicular to an emission axis of the light source may be disposed between the injector and the lightguide. At least a portion of the injector may have a shape corresponding to a confinement curve that is rotated about an axis parallel to the confinement direction. | 10-23-2008 |
20090010596 | OPTICAL COMMUNICATION SYSTEM AS WELL AS A ACCESS NETWORK PROVIDED THEREWITH - The invention relates to an access network for exchanging communication signals between a transit network and at least one communication medium of a user. The communication medium is operatively connected to an exchange by means of an optical fibre connection for exchanging the communication signals, and the exchange is connected to the transit network. The fibre connection comprises at least one multimode fibre, which is bent over at least one first part of its length, in such a manner that the fibre comprises at least one complete winding in the first part thereof mainly for maintaining one or more modes of the communication signals into the fibre. Said modes have been selected from a group comprising the ground mode and one or more lower modes near the ground mode. | 01-08-2009 |
20090028504 | OPTICAL WAVEGUIDE RING RESONATOR WITH PHOTO-TUNNELING INPUT/OUTPUT PORT - An optical resonator, a photonic system and a method of optical resonance employ optical waveguide segments connected together with total internal reflection (TIR) mirrors to form a closed loop. The optical resonator includes the optical waveguide segments, the TIR mirrors and a photo-tunneling input/output (I/O) port. The photo-tunneling I/O port includes one of the TIR mirrors. The method includes propagating and reflecting an optical signal, or a portion thereof, in the optical resonator, and transmitting a portion of the optical signal through the photo-tunneling I/O port. The photonic system includes the optical resonator and a source of an optical signal. | 01-29-2009 |
20090103865 | Method and Device for Optical Fiber Connection - A device for coupling an optical fiber includes: a first surface and a second surface, including respective active surface portions; at least one optical fiber positioning element adapted to position at least one point of an optical fiber on a longitudinally median plane of the second surface. The first and second surfaces are movable relative to one another between a first and a second relative position, and, when in the second relative position, cooperate to accommodate a section of the optical fiber therebetween. In this position, the first and second active surface portions cooperate to keep the optical fiber in a predetermined bent condition, particularly adapted to extract light from, or inject light into, the optical fiber. In at least a part of the relative movement from the first to the second relative positions, the first surface rotates with respect to the second surface around a rotational axis oriented transversally with respect to the median plane. | 04-23-2009 |
20090116787 | Optical Waveguide Device and Method for Fabricating Optical Waveguide Device - An optical waveguide device in which optical loss is reduced while reducing fabrication cost. Inclining faces ( | 05-07-2009 |
20090116788 | CONTROLLING OPTICAL RESONANCES VIA OPTICALLY INDUCED POTENTIALS - Influence of distance between two coupled strong-confinement photonic devices on optically resonant condition thereof and/or on optical forces. | 05-07-2009 |
20090290835 | 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. | 11-26-2009 |
20090297099 | BENT OPTICAL FIBER COUPLERS AND OPTO-ELECTRICAL ASSEMBLIES FORMED THEREFROM - A bent optical fiber coupler ( | 12-03-2009 |
20090310914 | Optical backplane connector, photoelectric conversion module and optical backplane - An optical backplane connector with a board removable (being possible to insert and remove) therein in the direction perpendicular to the backplane plate surface is arranged on a backplane having optical transmission paths. The optical backplane connector accommodates a photoelectric conversion module in such a manner the incident and exit light are perpendicular to the backplane and a transparent board with a photoelectric conversion element mounted thereon is perpendicular to the board and parallel to the backplane. The conduction between the electric contacts of the photoelectric conversion module and the inner electric contacts of the optical backplane connector is held by mechanical contact. At the end portion of the optical transmission path on the backplane, an optical connector having a 45′ mirror and guide pins is mounted. The positioning operation is achieved by fitting the guide pins of the optical connector with the guide holes of the photoelectric conversion module. | 12-17-2009 |
20100002994 | Integrated Optical Modulator - Systems and methods for manipulating light with high index contrast waveguides clad with crystalline substances having that exhibit large nonlinear electro-optic constants χ | 01-07-2010 |
20100119194 | Optical Waveguide With Reflector - An optical waveguide includes a core layer having a first core section and a second core section, wherein the first core section is non-axially aligned with the second core section. The optical waveguide also includes a cladding layer disposed about the core layer and a reflector in optical communication with the core layer for directing an electromagnetic wave from the first core section to the second core section. | 05-13-2010 |
20100158440 | LIGHT EMITTING DEVICE AND OPTICAL COUPLING MODULE - Provided are a light emitting device and an optical coupling module. The device includes a substrate, a light emitting part provided to the substrate, and a reflecting part provided to a lower surface of the substrate. The light emitting part includes an active pattern disposed on the substrate, an upper mirror provided to an upper portion of the active pattern, and a lower mirror provided to a lower portion of the active pattern. The light emitting part may emit light normal to the substrate, and the reflecting part may reflect the emitted light to a side surface of the substrate. | 06-24-2010 |
20100215315 | OPTICAL CABLE MODULE AND APPARATUS EMPLOYING IT - An optical cable module is mainly provided with: an optical waveguide ( | 08-26-2010 |
20100303409 | SOLID STATE LIGHT SOURCE BASED ON HYBRID WAVEGUIDE-DOWN-CONVERTER-DIFFUSER - A solid state light source comprising a light pump outputting light energy; a waveguide optically coupled to the light pump source for receiving the light energy; and a down-converter for converting the light energy from the waveguide to a lesser light energy. | 12-02-2010 |
20110013868 | OPTICAL WAVEGUIDE FOR VISIBLE LIGHT - The present invention relates to an optical waveguide for visible light guide containing an optical waveguide layer, at least one light entering part and at least one light exiting part, the light entering part and the light exiting part being disposed not adjacent to each other, that can be easily reduced in size and reduced in thickness, can be formed or the like on a substrate, and can be used for an illumination purpose, and also provides a flexible optical waveguide for visible light guide that emits light partly, is flexible to enable use in a bent state, and can be installed in a small gap in a small-sized electronic apparatus. | 01-20-2011 |
20110123149 | Fiber Assembly Employing Photonic Band-Gap Optical Fiber - A fiber assembly having at least one photonic band-gap fiber and opto-electronic devices coupled to the at least one fiber at either end. The opto-electronic devices serve as electrical-to-optical (EO) and optical-to-electrical (OE) converters and provide industry-standard electrical interfaces to respective electronic devices. The photonic band-gap fiber has a hollow core so that light travels through air rather than glass, thereby providing a number of advantages over glass-based optical fiber assemblies used to connect electronic devices. A bent optical fiber coupler for use in the fiber assembly is also disclosed. | 05-26-2011 |
20110206320 | Optical Beam Couplers And Splitters - Beam couplers and splitters are disclosed herein. An embodiment of a beam coupler and splitter includes a first waveguide including a bevel and a bend, and a second waveguide including a bevel complementarily shaped to the first waveguide bevel. The first waveguide bevel is configured to totally internally reflect at least some light incident thereon. The second waveguide is coupled to the first waveguide such that i) the second waveguide bevel is adjacent to at least a portion of the first waveguide bevel, and ii) a predetermined coupling ratio is achieved. | 08-25-2011 |
20110217004 | DEVICE FOR BENDING OPTICAL FIBER AND RECEIVING LIGHT - A device for bending an optical fiber and receiving light is provided with a recessed holding member having a recess, a projecting holding member having a projection projecting toward the recess, light receiving elements for receiving leak light from an optical fiber held between the recess and the projection, and a supplemental support mechanism that is substantially independent of the recess or the projection and supplementarily supports the optical fiber between the recess and the projection such that the leak light from the optical fiber is received by center of the light receiving elements. | 09-08-2011 |
20110243501 | DEVICE WITH WAVELENGTH SELECTIVE COUPLER FOR COLLECTING LIGHT EMITTED BY A LASER SOURCE - A device for collecting light emitted by a laser source, including an optical wave guide arranged so as to collect a light signal emitted by the laser source, by coupling. The wave guide includes a loop coupled to a laser source in two coupling zones making it possible to recover optical modes circulating along the direction opposite to the required direction for the signal output from the device. | 10-06-2011 |
20110280516 | BEAM AREA ADJUSTMENT THROUGH FIBER BENDING - A device having two sets of raised portions inside a metal case is provided for bending an optic fiber. According to some embodiments, the two sets of raised portions are on two plates that are biased apart by a spring means. According to some embodiments, the metal case prevents viewing of an optic fiber in the metal case. According to some embodiments, an adjustable stopping element is provided to limit movement of the two plates toward each other. | 11-17-2011 |
20120002920 | ANTI-RESONANT WAVEGUIDE BENDS - The present invention provides a system, apparatus and method to maintain the polarization state of an optical signal propagating within a photonic integrated circuit, or from a first photonic integrated circuit to a second photonic integrated circuit. According to various embodiments of the invention, an optical circuit is provided which includes a waveguide having one or more bends or curved portions. The bends or curved portions of the waveguide are configured to maintain the polarization orientation of the optical signal as the optical signal propagates through the waveguide, such that the polarization orientation at inputs or outputs, or at various points along the waveguide is known. Embodiments of the present invention mitigate polarization crosstalk, which in turn provides for improved processing efficiency. | 01-05-2012 |
20120002921 | OPTICAL WAVEGUIDE ELEMENT, OPTICAL HYBRID CIRCUIT, AND OPTICAL RECEIVER - An optical waveguide element includes a first optical coupler, a second optical coupler, and a first optical waveguide and a second optical waveguide that couple an output side of the first optical coupler and an input side of the second optical coupler to each other, the first optical waveguide and the second optical waveguide each include a bent waveguide, and the first optical waveguide and the second optical waveguide are different in optical path length from each other. | 01-05-2012 |
20120027344 | LIGHT GUIDING BEND WITH CURVED SLITS - A light guide ( | 02-02-2012 |
20120106892 | Light Redirection System and Methods of Forming Same - Light redirection systems and methods including an optical fiber having first and second ends, an optical element mounted to each of the first and second ends to direct light into and out of the optical fiber, respectively, and a mounting element to mount the optical fiber to an article of apparel such that the optical fiber is invisible to an outside of the article, and the optical elements are visible to the outside from opposing sides of the article, respectively. | 05-03-2012 |
20120114284 | LIGHTGUIDE HAVING MULTIPLE REFLECTORS - Lightguide is disclosed. The lightguide includes a staircase shape optical construction that includes a plurality of light reflecting risers. At least two of the risers include non-parallel light reflecting portions. | 05-10-2012 |
20120134625 | OPTICAL MODULE, OPTICAL MODULE CONNECTOR, AND OPTICAL DEFLECTION MEMBER - An optical module configured to perform conversion between an optical signal and an electrical signal includes a board having a flat-plate shape; a light-receiving part and a light-emitting part attached on a surface of the board, the light-receiving part being configured to receive a first optical signal input from an optical cable and the light-emitting part being configured to output a second optical signal based on an input electrical signal; and an optical deflection member configured to deflect the first optical signal substantially 90 degrees and output the first optical signal to the light-receiving part and to deflect the second optical signal input from the light-emitting part substantially 90 degrees and output the second optical signal to the optical cable, the optical deflection member including multiple optical waveguides arranged in a first array and a second array. | 05-31-2012 |
20120243828 | RING OPTICAL MODULATOR - A ring optical modulator according to an embodiment, includes a ring resonator and an input/output optical waveguide. The ring resonator is configured to have a closed loop optical waveguide in a p-i-n diode structure. A portion of the closed loop optical waveguide and a portion of the input/output optical waveguide positioned close to each other function as an optical coupler. Relationships of Formula (2) to Formula (8) are satisfied by a loss x [%] per revolution of the resonator when the current is turned off and a power coupling ratio y [%] of the optical coupler for the light of the resonant wavelength λ | 09-27-2012 |
20120301077 | Adiabatic Coupler For Coiled Optical Fiber Devices - An optical fiber coupler is formed of a section of optical fiber that is positioned between a conventional input fiber (for example, a single mode fiber) or waveguide and a coiled optical fiber device. The adiabatic coupler is coiled (or, at least, curved) to assist in transforming a conventional fundamental mode optical signal propagating along the longitudinal axis of the input fiber to an optical signal that is shifted into a peripheral region of the coiled optical fiber. Moreover, the pitch of an inventive coiled optical fiber coupler can be controlled to assist in the adiabatic transformation process. | 11-29-2012 |
20130039618 | PATTERNED NON-RECIPROCAL OPTICAL RESONATOR - A patterned nonreciprocal optical resonator structure is provided that includes a resonator structure that receives an optical signal. A top cladding layer is deposited on a selective portion of the resonator structure. The top cladding layer is patterned so as to expose the core of the resonator structure defined by the selective portion. A magneto-optically active layer includes a magneto-optical medium being deposited on the exposed core of the resonator structure so as to generate optical non-reciprocity. | 02-14-2013 |
20130051729 | MULTI-CORE OPTICAL FIBER COUPLER - An optical device comprising a multi-core optical fiber coupler. The multi-core optical fiber coupler includes a substrate having a planar surface and turning mirrors located along the planar surface, each of the turning mirrors having a reflective surface oriented to change a direction of light between a direction that is parallel to the planar surface and a direction that is substantially non-parallel to the planar surface. The turning mirrors form a lateral pattern along the planar surface, the lateral pattern being configured to approximately match a pattern of optical cores in a multi-core optical fiber whose end segment faces the pattern and is positioned substantially normal to the planar surface of the substrate. | 02-28-2013 |
20130223795 | OPTICAL COUPLING ELEMENT AND MANUFACTURING METHOD - The present invention relates to an optical coupling element to optically couple optical elements of different kinds to each other, which is provided with a plurality of cores. In the optical coupling element a first end and a second end opposed thereto are different in at least either of a core array and a core interval. The optical coupling element has a bent shape of at least a part of the optical coupling element itself including the cores, so that a light input/output direction at the first end is different from a light input/output direction at the second end. | 08-29-2013 |
20160109666 | FIBER ASSEMBLY - A fiber assembly ( | 04-21-2016 |
20160131841 | OPTICAL FIBER TIP ATTACHMENT - An optical fiber tip attachment comprising:
| 05-12-2016 |