Abstract: An interface for optical communication, including an input waveguide in which light input from an outside is guided, an output waveguide including a first part abutting against one end of the input waveguide and a second part connected to the first part and a substrate including a Buried oxide (BOX) layer connected to a lower side of the output waveguide, wherein the one end of the input waveguide includes a tapered structure of which a cross-sectional area is reduced by a predetermined angle.

Abstract: An optical structure includes a grating coupler and a microlens. The grating coupler is configured to receive a laser light. The microlens is above the grating coupler, in which a metal shielding covers the microlens and has an opening to allow the laser light entering an effective coupling region of the grating coupler.

Abstract: An optical system includes a light module, an optical element on a first grating coupler, and a second grating coupler. The light module emits three beams from different positions. The optical element is below the light module and is configured to change incident angles of the three beams and to focus the three beams at the same region of the first grating coupler. The first grating coupler is below the optical element and is configured to couple the three beams into a light-guide substrate. The light-guide substrate is connected to the first grating coupler and is configured to transmit the three beams. The second grating coupler is connected to the light-guide substrate and is configured to enable the three beams departing from the light-guide substrate after the three beams have traveled the same optical path.

Abstract: A grating coupler having first and second ends for coupling a light beam to a waveguide of a chip includes a substrate configured to receive the light beam from the first end and transmit the light beam through the second end, the substrate having a first refractive index n1, a grating structure having curved grating lines arranged on the substrate, the grating structure having a second refractive index n1, wherein the curved grating lines have line width w and height d and are arranged by a pitch ?, wherein the second refractive index n2 is less than first refractive index n1, and a cladding layer configured to cover the grating structure, wherein the cladding layer has a third refractive index n3. The curves of the grating lines are constructed such that the emitting beam is shaped for efficient coupling to another optical component. The curves can also be tilted to reduce coupling back into the waveguide.

Abstract: An optical device may include a fiber to provide a beam. The optical device may include a graded-index element to expand or magnify the beam. An input facet of the graded-index element may be adhered to an output facet of the fiber. The optical device may include an optical transformation element to transform the beam after the beam is expanded or magnified by the graded-index element. An input facet of the optical transformation element may be adhered to an output facet of the graded-index element.

Abstract: Aspects and techniques of the present disclosure relate to an apparatus for providing 200 micron, or smaller, coated optical fibers with a 250 micrometer pitch diameter in preparation for insertion into a Multi-fiber Push On connector (MPO) and/or splicing apparatus. The apparatus can sort, arrange, and clamp optical fibers into a proper sequence to allow the coated optical fibers to be aligned for processing, for example, connectorization and/or splicing. The apparatus includes a separator element that defines grooves for receiving and sequencing coated optical fibers with respect to each other to set a uniform pitch diameter.

Abstract: An optical fiber connector has a lens component and a fiber component. The lens component has at least one lens and an opening with at least one V-groove therein. The at least one lens is associated with the at least one V-groove. The fiber component is configured to be partially inserted into the lens component and has at least one bare fiber flexible retention feature configured to retain a fiber of a fiber optic cable within the at least one V-groove and also to align the fiber with the lens.

Abstract: An optical coupler is provided. The optical coupler includes: a first optical structure, and a second optical structure disposed over the first optical structure. The first optical structure includes: a first substrate, a first cladding layer disposed on the first substrate, and a first waveguide disposed on the first cladding layer. The first waveguide includes a first coupling portion, and the first coupling portion including a first taper part. The second optical structure includes: a second substrate, a dielectric layer disposed on the second substrate; and a second waveguide disposed on the dielectric layer. The second waveguide includes a second coupling portion, and the second coupling portion including a second taper part. The second taper part is disposed on and optically coupled with the first taper part, and a taper direction of the first taper part is the same as a taper direction of the second taper part.

Abstract: Embodiments of this application provide an optical fiber ferrule, where n rows of optical fiber holes are symmetrically distributed on a mating end face of the ferrule, n>=3, and n is an odd number. Based on the layout design of optical fiber holes on the optical fiber ferrule, this application provides an optical fiber connector that includes a plurality of rows of optical fiber holes and that is compatible with one row and a relatively small number of rows of optical fiber holes, so that an optical fiber connector with a large number of cores can be forward compatible with an optical fiber connector with a small number of cores, thereby improving expandability and compatibility of the optical fiber ferrule.

Abstract: An optical transceiver including a submount, a Mach-Zehnder Modulator (MZM), bonding wires, and a low pass filter type matching network is provided. The MZM includes an input port and an output port and disposed on the submount. The bonding wires are coupled to the submount and the MZM. The low pass filter type matching network is coupled to the bonding wires and is configured to absorb inductance of the bonding wires at a high frequency.

Abstract: Embodiments provide for an optical modulator, comprising: a lower guide, comprising: a lower hub, made of monocrystalline silicon; and a lower ridge, made of monocrystalline silicon that extends in a first direction from the lower hub; an upper guide, including: an upper hub; and an upper ridge, made of monocrystalline silicon that extends in a second direction, opposite of the first direction, from the upper hub and is aligned with the lower ridge; and a gate oxide layer separating the lower ridge from the upper ridge and defining a waveguide region with the lower guide and the upper guide.

Abstract: An optical waveguide device includes: a wiring board; a first cladding layer that is formed on the wiring board; a plurality of second cladding layers that are formed on the first cladding layer; a plurality of protrusions each of which is formed on a corresponding one of the second cladding layers and each of which is provided with an inclined face inclined to a front face of the corresponding second cladding layer; a plurality of optical path converting mirrors each of which is formed on a corresponding one of the inclined faces of the protrusions; a plurality of core layers each of which is formed on a corresponding one of the second cladding layers and each of which directly contacts the corresponding optical path converting mirror; and a third cladding layer that is formed on the second cladding layers and the core layers.

Abstract: Space division multiplexers can include adapters between multicore fibers with different core patterns and/or add-drop multiplexers for multicore fibers.

Abstract: A photonic integrated circuit chip includes vertical grating couplers defined in a first layer. Second insulating layers overlie the vertical grating coupler and an interconnection structure with metal levels is embedded in the second insulating layers. A cavity extends in depth through the second insulating layers all the way to an intermediate level between the couplers and the metal level closest to the couplers. The cavity has lateral dimensions such that the cavity is capable of receiving a block for holding an array of optical fibers intended to be optically coupled to the couplers.

Abstract: A pluggable optical connector is configured to be insertable into and removable from an optical communication apparatus, and to be capable of communicating a modulation signal and a data signal with the optical communication apparatus. A wavelength-tunable light source is configured to output an output light and a local oscillation light. An optical transmission unit is configured to output an optical signal generated by modulating the output light in response to the modulation signal. An optical reception unit is configured to demodulate an optical signal received by using the local oscillation light to the data signal. Pluggable optical receptors are configured in such a manner that an optical fiber is insertable into and removable from the pluggable optical receptors, and configured to be capable of outputting the optical signal to the optical fiber and transferring the optical signal received thorough the optical fiber to the optical reception unit.

Abstract: A cable release system includes a handle. An elongated base extends from the handle and includes a length that allows the handle to be held adjacent a cable connector distal end of a cable connector that is connected to a computing device while the elongated base extends adjacent the cable connector and an elongated base distal end of the elongated base is located adjacent a securing latch on the cable connector. An actuating member is located on the elongated base distal end of the elongated base and is configured to actuate the securing latch on the cable connector when the elongated base distal end of the elongated base is located adjacent the securing latch on the cable connector.

Abstract: An optical fiber distribution element (1810) includes a chassis (1820), an optical device (1900) mounted to the chassis (1820), the optical device (1900) including a plurality of cables (2134) extending from the optical device (1900) into the chassis (1820), and a cable management device (2110/2210) mounted to the chassis (1820).

Abstract: A photoelectric adapter includes a power sourcing equipment (PSE) device, an optical connector connection part and an electrical connector. The electrical connector is connectable to an electrical connector connection part of an electrical device. The PSE device includes a semiconductor laser that oscillates with electric power, thereby outputting feed light. The PSE device is driven by receiving the electric power supplied from the electrical device through the electrical connector, and outputs the feed light from the optical connector connection part. Another photoelectric adapter includes a powered device, an optical connector connection part and an electrical connector. The powered device includes a photoelectric conversion element that converts feed light into electric power. The powered device receives the feed light supplied through the optical connector connection part, converts the feed light into the electric power, and outputs the electric power from the electrical connector.

Abstract: A slide assembly for slidably coupling a telecommunications tray to a telecommunications chassis includes a rail configured for mounting to the chassis, the rail defining a rail sliding cavity flanked by a first detent adjacent a first end and a second detent adjacent a second end of the rail, the rail further comprising first and second chassis mounting features, the first and the second chassis mounting features are oriented with respect to each other such that if two of the same rails are aligned and brought together in a juxtaposed relationship with the first and second chassis mounting features facing each other, the first and the second chassis mounting features can nest relative to each other so as to not increase the total width of the two rails.

Abstract: An optical fiber connector sub-assembly for an optical fiber connector includes a ferrule configured to hold an optical fiber therein along an axis of the ferrule and a ferrule holder configured to hold the ferrule. The ferrule has an end face at which the optical fiber is terminated, and the ferrule holder includes a base in which the ferrule is configured to be seated. The sub-assembly includes a ferrule basket including an inner sleeve slidably coupled with an outer sleeve and configured to isolate a front end of the connector from a rear end of the connector such that the ferrule is isolated from movement of the rear end of the connector. The ferrule basket is configured to receive the ferrule holder therein.