Abstract: Gradient index (GRIN) lens assemblies employing lens alignment channels, as well as fiber optic connectors and fiber optic cable assemblies employing such GRIN lens assemblies, are disclosed. In one embodiment, a GRIN lens assembly includes a lens holder body having a mating face, a surface extending from the mating face, and a lens alignment channel. The lens alignment channel is defined by a narrow portion extending from the surface to a first depth and at least partially along a length of the surface, and a wide portion extending from the narrow portion to a second depth. A lens opening defined by the wide portion of the lens alignment channel at the mating face is disposed in the mating face. The wide portion of the lens alignment channel is configured to support a GRIN lens disposed in the lens alignment channel.

Abstract: The present invention relates to a liquid crystal panel having the first substrate sheet. The object of the present invention can be accomplished by a liquid crystal capsule which is mixed with a binder and printed on one surface of the first substrate on which the transparent electrode is formed; a transparent adhesive applied to entirely cover the liquid crystal capsule and the binder printed on the first substrate; and a releasing sheet which is attached to entirely cover the transparent adhesive applied on the first substrate.

Abstract: It is an object of the present invention to have a method for aligning the optical axis of an optical fiber with the optical axis of an opto-electronic component and for fastening the optical fiber into the resulting relative position in relation to the opto-electronic component. This method includes the following steps: a slot is cut into a base, an optical fiber is disposed within the slot so that it touches neither the sides nor the bottom, a solidifiable product is deposited onto the optical fiber, a limited polymerization area of the solidifiable product is defined near the opto-electronic component, one part of the solidifiable product is partially solidified so as to allow the optical fiber a limited range of movement, the optical fiber is moved so as to align its optical axis with the optical axis of the opto-electronic component, the solidifiable product is completely solidified so as to fasten the optical fiber within the slot.

Abstract: A low-cost optical module with highly consistent properties. The optical module includes, in a housing, an optical waveguide array, an optical functional element array, lens optics using one or a plurality of lenses for optically coupling the optical waveguide array and the optical functional element array, and a mirror disposed so as to convert the propagation direction of optical beams transmitted by the lens optics such that the optical beams are incident on the optical incidence ports of the optical functional element array. The optical functional element array is affixed to the housing, and the angle of the mirror is fixed in place after the angle of the mirror is adjusted such that the optical waveguide array and the optical functional element array are optically coupled.

Abstract: 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.

Abstract: A polishing jig 10 includes a holding member 11 for holding a ferrule 31 when polishing a front end face of the ferrule 31. The holding member 11 is formed by a holding member body 12 having a through hole 121 through which the ferrule 31 is inserted, and protrusions 16 and 17 which are provided on an upper surface of the holding member body 12, for supporting a flange 33 of the ferrule 31 when the ferrule 31 is inserted into the through hole 121.

Abstract: An optical switch fabric, including: a first set of horizontal optical waveguides receiving a plurality of wavelengths; a plurality of wavelength-selective drop optical switches associated with the first set of horizontal optical waveguides, wherein the plurality of wavelength-selective drop optical switches are each configured to drop a selected wavelength from a horizontal optical waveguide of the first set of horizontal optical waveguides to an associated vertical optical waveguide of a plurality of vertical optical waveguides; and a plurality of controllable optical switches associated with the plurality of vertical optical waveguides, wherein the plurality of controllable optical switches are each configured to direct a selected wavelength from a vertical optical waveguide of the plurality of vertical optical waveguides to a horizontal optical waveguide of a second set of horizontal optical waveguides, and wherein the second set of horizontal optical waveguides output a plurality of wavelengths.

Abstract: A rotary optical link joint having a small change in transmission loss during rotational use is provided. In order to realize this, the rotary optical link joint according to the present invention is an optical link joint that relatively rotatably holds, centering around an axis line (19, 29), a first optical fiber (11) and a second optical fiber (21), wherein a part or all of the first optical fiber (11) and the second optical fiber (21) are configured by a multi-core optical fiber having a plurality of cores, and wherein the plurality of cores is arranged in a circular or annular area that is sectioned by a concentric circle centered around the axis line (19, 29) of the multi-core optical fiber.

Abstract: An optical fiber includes multiple cores and a cladding. At least one of the multiple cores forms an optical waveguide and has an elongated cross-section with a narrower dimension in a fast-axis direction and a wider dimension in a slow-axis direction. The cladding surrounds the multiple cores and has a refractive index that differs from at least one refractive index of the multiple cores. The multiple cores could be stacked such that a first of the multiple cores is located at least partially over a second of the multiple cores in the fast-axis direction. The optical fiber could include an additional core within the cladding and having a substantially circular cross-section. The cores could be used to transport a high-power laser beam, an illumination laser beam, and an alignment laser beam. The optical fiber could have a length of at least two meters.

Abstract: One exemplary multimode optical fiber includes a graded index glass core having a diameter in the range of 41 microns to 80 microns, a graded index having an alpha less than 2.04 and a maximum relative refractive index in the range between 0.6% and 1.8%. The cladding includes a depressed-index annular portion. The fiber has an overfilled bandwidth greater than 2.5 GHz-km at at least one wavelength between 1200 nm and 1700 nm.

Abstract: A semiconductor pointed structure formed at an end portion of the core structure of a semiconductor photonic wire waveguide has a sloped side wall on at least one of the sides that constitute the pointed structure. The semiconductor pointed structure decreases in width and thickness towards the distal end. A method for fabrication of the structure is also disclosed.

Abstract: A ferrule for an optical fiber connector having open fiber clamping grooves. The ferrule has a body having a plurality of open grooves for clamping the terminating end sections of optical fibers. At least a section of the longitudinal opening of the groove is provided with opposing lips to provide a clamping effect. The width of the longitudinal opening defined between the lips along at least a section of the grooves is narrower than the diameter of the optical fibers to create a tight fit. The grooves and the width of the longitudinal groove openings are shaped and sized to retain the fibers without any clearance to allow for movement of the fiber relative to the groove. Similar grooves may be provided in the ferrule body for alignment guide pins. The grooves are precision formed by high throughput processes, such as stamping and extrusion.

Abstract: The invention relates to a fiber optic telecommunications module (100) comprising: a main housing portion (102) including a top wall (108), a bottom wall (110), a first transverse sidewall (106), a rear wall (112), an open front end (120), and an open second side (116), the main housing portion (102) including an optical component (130); a cover portion (104, 104a) coupled to the main housing portion (102) to close up the open second side (116) of the main housing portion (102) and keep the optical component (130) within the main housing portion (102); a first fiber optic adapter module (316) and a second fiber optic adapter module (316) removably coupled to the main housing portion (102) to close the open front end (120) of the main housing portion (102), the first and second fiber optic adapter modules (316) being provided in a stacked arrangement in a direction extending from the first transverse (106) sidewall toward the cover portion (104, 104a); wherein each of the first and second fiber optic adapter m

Abstract: A liquid crystal display includes an insulating substrate having a pixel portion divided into a thin film transistor region and a storage region, a first active layer formed on the substrate to cover at least the thin film transistor region, and a storage electrode formed on the first active layer to selectively cover the storage region.

Abstract: A core intersection in an optical waveguide formed of a plurality of cores and a clad that surrounds the cores is disclosed, the structure characterized in that the same material as that of the cores is added to two planes, upper and lower planes, of each of core intersection spaces where the plurality of cores intersect (instead of using a clad material). The structure of a core intersection in an optical waveguide formed of a plurality of cores and a clad is disclosed, the structure characterized in that four planes that divide (isolate) each of core intersection spaces where the plurality of cores intersect, that is, four discontinuity spaces between the core intersection space and the cores connected thereto, are filled with the same material as that of the clad (instead of using a core material so that the core intersection space is seamlessly connected to surrounding core intersection spaces).

Abstract: A light source includes a base, a first bonding layer, at least two laser diodes, a second bonding layer, a substrate, and a planar waveguide. The laser diodes are fixed to and are electrically connected to the base using the first bonding layer, and each of the laser diodes includes a side surface for emitting light. The substrate is fixed to the base using the second bonding layer. The waveguide is formed on the substrate and includes an output section including an output end and at least two input branches branching off from an end of the output section opposite to the output end. Each of the input branches includes an input end opposite to the output section and aligning with a respective one of the side surfaces of the at least two laser diodes.

Abstract: An exemplary optical fiber connector includes a first surface and a second surface at opposite sides thereof, and a third surface connected between the first surface and the second surface. Two projections are formed on the first surface, and extend a same distance along a direction perpendicular to the first surface. The optical fiber connector defines a fixing recess extending from the second surface towards the first surface and being open at the third surface. The fixing recess has a first inner surface and a second inner surface. The first inner surface is parallel to the third surface. The second inner surface is parallel to the first surface. The first inner surface defines a number of receiving grooves. The optical fiber connector defines a number of receiving holes extending from the second inner surface to the first surface. The receiving holes are aligned and communicated with the receiving grooves, respectively.

Abstract: An optical connector includes a printed circuit board (PCB), an optical-electric coupling element, and a jumper detachably attached to the optical-electric coupling element. The optical-electric coupling element is positioned on the PCB. The optical-electric coupling element includes at least two first coupling lenses and a sloped surface. The optical-electric coupling element defines a stepped receiving cavity in its sidewall. A bottom surface of the stepped receiving cavity forms at least two second coupling lenses. The jumper is detachably inserted into the stepped receiving cavity, and the jumper has at least two receiving holes receiving at least two optical fibers. Each optical fiber is optically aligned with a respective second coupling lens. Each second coupling lens is optically aligned with a respective first coupling lens via the sloped surface.

Abstract: Provided is a liquid crystal display to provide improved transmittance and visibility includes a first substrate; a first switching element and a second switching element formed on the first substrate configured to be switched by the same signal; a first subpixel electrode connected to the first switching element; a second subpixel electrode connected to the second switching element; a third switching element connected to the second switching element; a third subpixel electrode connected to the third switching element; a second substrate; a common electrode formed on the second substrate; and a liquid crystal layer formed between the first substrate and the second substrate.

Abstract: A method includes transmitting optical signals through a heterogeneous sequence of spans of an all-optical transmission line. Each span has an optical transmission fiber connected to an optical amplifier. Each amplifier launches the signals into a sequential remainder of the line. The transmitting includes launching the optical signals into the highest loss fibers with substantially equal average optical launch powers or operating the spans with the highest loss fibers to have substantially equal quality products. The average optical launch powers are substantially equal to the inverse of a sum of (1?Tj)?j/[?NL·?j] over the highest loss fibers. The parameters Tj, ?j, and ?j are the respective are, respectively, transmissivity, nonlinear optical coefficient, and loss coefficient of the fiber of the j-th span. The parameter ?NL is the line's cumulative nonlinear phase shift.