Abstract: An apparatus comprises a multi-clad fiber that includes a light-guiding core surrounded by at least a cladding layer, and an input interface including a first set of input channels in the core configured to receive a first optical fiber, and a second set of input channels in the cladding layer configured to receive a second optical fiber. The apparatus further includes an optical switch module having an input port, a first and a second output port, a first optical path between the input port and the first input channel, and a second optical path between the input port and a second input channel in the second set of input channels. The optical switch module is controllable to switch between the first and the second optical paths. The apparatus also includes a set of laser modules.

Abstract: A method for protecting fusion spliced optical fibers includes immersing sections of fusion spliced first and second optical fibers in a pool of molten thermoplastic material, followed by removal and cooling of liquid-coated areas, to yield a solid thermoplastic overcoating that extends over a splice joint as well as previously stripped sections and pre-coated sections of the first and second optical fibers. Optionally, a strength member may be adhered to the solid thermoplastic overcoating to provide a reinforced fusion spliced section. A strength member may include a metal rod or a secondary, thick thermoplastic coating. A fiber optic cable assembly includes a solid thermoplastic overcoating that extends over the splice joint as well as previously stripped sections and pre-coated sections of the fibers.

Abstract: A compliant adapter for fiber-optic connectors that are inserted into a cut-out in a panel include a main body extending between a first end and a second end and a compliant piece disposed at the second end of the main body that is movable between a relaxed position and a compressed position. The compliant adapter has a first opening area in the relaxed position and a smaller second opening area in the compressed position.

Abstract: A method of nonblocking optical switching includes guiding a first optical beam from a first input to a first output via a first path through an optical switching fabric. The first path traverses a phase shifter disposed between a pair of cascaded Mach-Zehnder interferometers. The method also includes receiving a second optical beam for a second path intersecting with the first path through the optical switching fabric. The method also includes moving the first optical beam from the first path to a third path connecting the first input to the first output without intersecting the second path. The method also includes shifting a phase of the first optical beam, with the phase shifter, while moving the first optical beam from the first path to the third path to prevent the first optical beam from interfering with the second optical beam.

Abstract: A new boot for a fiber optic connector has a ribbed back portion, a center portion, and a forward extending portion that can be used to insert and remove the fiber optic connector to receptacle. The ribbed back portion has grasping elements and is connected to the center portion. The center portion is removably connected to a crimp body that is in turn connected to the connector housing. The front extension is connected to the fiber optic connector and also provides a keying feature depending on the side of the fiber optic connector on which it is installed.

Abstract: Aspects and techniques of the present disclosure relate to a telecommunications optical fiber management tray (100) that provides enhanced access to connectors and adapters. In one example, a fiber optic telecommunications tray (100) is disclosed which has movable components that can configure the tray between a storage position and an access position. In the storage position, one or more fiber optic connectors (154) and a fiber containment wall (106) extending from a base (104) of the tray (100) are positioned such that a port of a connector mounted (154) to the tray (100) has a longitudinal axis that passes through the fiber containment wall (106). In the access position, the one or more fiber optic connectors (154) and the fiber containment wall (106) are position such that the connector port longitudinal axis does not pass through the fiber containment wall (106).

Abstract: An optical connector device includes a first optical connector that has a first housing that holds a ferrule; and a second optical connector that has a second housing that houses an FOT and a light guide member. The second housing includes a ferrule insertion portion. The ferrule insertion portion has a ferrule insertion hole into which the ferrule can be inserted. An inner peripheral surface of the ferrule insertion hole has a ferrule fixing structure that fixes the ferrule inside the ferrule insertion hole to suppress play of the ferrule inside the ferrule insertion hole.

Abstract: A receptacle structure for optical connector comprises a base, a first adjusting plate and a second adjusting plate. The base has a supporting frame formed on the top thereof and supporting structures respectively formed at the two side walls thereof. The first adjusting plate arranged on the supporting frame has a first matching structure and a second matching structure. The second adjusting plate arranged on the supporting structures has third matching structure and fourth matching structure. When the first matching structure is arranged at an insertion side and the third matching structure is arranged toward the inner space of the base, the first connector could be inserted into the base. When the second matching structure is arranged at the insertion side and the fourth matching structure is arranged toward the inner space of the base, the second connector could be inserted into the base.

Abstract: A method for protecting fusion spliced optical fibers includes immersing sections of fusion spliced first and second optical fibers in a pool of molten thermoplastic material, followed by removal and cooling of liquid-coated areas, to yield a solid thermoplastic overcoating that extends over a splice joint as well as previously stripped sections and pre-coated sections of the first and second optical fibers. Optionally, a strength member may be adhered to the solid thermoplastic overcoating to provide a reinforced fusion spliced section. A strength member may include a metal rod or a secondary, thick thermoplastic coating. A fiber optic cable assembly includes a solid thermoplastic overcoating that extends over the splice joint as well as previously stripped sections and pre-coated sections of the fibers.

Abstract: A connector including two connector portions each including a ferrule and a latch, each latch including a distal end, and a proximal end, wherein the latch is pivotable about an intermediate connection portion; and a boot mounted to the connector portions, the boot movable longitudinally relative to the connector portions, wherein the boot causes the distal ends of the latch to pivot toward the ferrule of each connector portion as the boot is moved away from the connector portions. Front housings of the connector portions can each be rotated about the longitudinal axis of the ferrule without rotating the ferrule or the boot, to change the polarity of the two connector portions. The spacing between the two ferrules is adjustable. A holder holds the connector portions, the holder including side slots, the connector portions mounted to the holder by moving laterally to the side slots. The holder defines an area for receipt of a fiber optic cable when the ferrule is pushed in a direction toward the boot.

Abstract: The present disclosure relates to semiconductor structures and, more particularly, to Waveguide absorbers and methods of manufacture are provided. The waveguide structure includes a photonics component and a spirally configured waveguide absorber coupled to a node of the photonics component which reduces optical return loss.

Abstract: An opto-mechanical resonator including a waveguide formed by a plurality of first strips spaced apart from one another; and two mirrors disposed facing one another, which mirrors are optically reflective over at least part of a guide wavelength range of the waveguide. The waveguide extends between the two mirrors, and forms therewith an optically resonant cavity. At least part of the waveguide is held such that it is suspended over a substrate by at least one deformable mechanical element.

Abstract: Display devices include waveguides with in-coupling optical elements that mitigate re-bounce of in-coupled light to improve overall in-coupling efficiency and/or uniformity. A waveguide receives light from a light source and/or projection optics and includes an in-coupling optical element that in-couples the received light to propagate by total internal reflection in a propagation direction within the waveguide. Once in-coupled into the waveguide the light may undergo re-bounce, in which the light reflects off a waveguide surface and, after the reflection, strikes the in-coupling optical element. Upon striking the in-coupling optical element, the light may be partially absorbed and/or out-coupled by the optical element, thereby effectively reducing the amount of in-coupled light propagating through the waveguide.

Abstract: In a light deflection device, the radiation efficiency of radiated light beams is to be improved. The light deflection device is configured by a photonic crystal waveguide having a lattice array with low refractive index parts periodically arrayed in a surface of a high refractive-index member. The lattice array has a dual-periodic structure consisting of a first periodic array and a second periodic array which differ from each other in periodic arrangement of the low refractive index parts. A line defect where no low refractive index parts are arrayed constitutes a waveguide core for propagating incident light. The cross section of at least either the first periodic array or the second periodic array constituting the periodic arrays of the dual-periodic structure is asymmetrical in the thickness direction of the low refractive index parts.

Abstract: An optical transceiver includes a receptacle, a ferrule and a ferrule fastening component. The receptacle includes a supporting portion and an inset portion connected with each other. The ferrule is disposed within the inset portion. The ferrule fastening component is disposed on the receptacle. The ferrule fastening component includes a first holding portion, a cap and a second holding portion connected together. The cap is located between the first holding portion and the second holding portion. The first holding portion touches the supporting portion, the second holding portion touches the ferrule, and the cap covers a first area of a top surface of the receptacle.

Abstract: Example fiber optic connector systems have rugged, robust designs that are environmentally sealed and that are relatively easy to install and uninstall in the field. Some connector systems can be configured in the field to be compatible with different styles of fiber optic adapters. Some connectors include a first seal (90) on a release sleeve; and a second seal (88) between the release sleeve and a connector body. Other connectors include a seal (139) and a flexible latch (136) on a connector. Other connectors include a protective structure (228, 328, 428) that mounts over the fiber optic connector. Other connectors include a protective outer shell (528, 860) and a sealing and attachment insert (570, 570A, 876). Other connectors include a protective outer shell (728) and a fastener (780).

Abstract: An electro-optical package. In some embodiments, the electro-optical package includes a first electro-optical chip coupled to an array of optical fibers, and a first physical medium dependent integrated circuit coupled to the first electro-optical chip.

Abstract: Integrated target waveguide devices and optical analytical systems comprising such devices are provided. The target devices include an optical coupler that is optically coupled to an integrated waveguide and that is configured to receive optical input from an optical source through free space, particularly through a low numerical aperture interface. The devices and systems are useful in the analysis of highly multiplexed optical reactions in large numbers at high densities, including biochemical reactions, such as nucleic acid sequencing reactions. The devices provide for the efficient and reliable coupling of optical excitation energy from an optical source to the optical reactions. Optical signals emitted from the reactions can thus be measured with high sensitivity and discrimination. The devices and systems are well suited for miniaturization and high throughput.

Abstract: A telecommunication enclosure includes an environmentally sealed housing having an interior volume. The sealed enclosure includes a housing wall defining an opening that extends from the interior to an exterior of the enclosure, the housing wall defining interior threads within the opening. A port-defining element mounts within the opening, the port-defining element defining exterior threads that are threadingly mated with respect to the interior threads to retain the port-defining element within the opening. The port-defining element defines a connector port for receiving a hardened fiber optic connector.

Abstract: A fiber optic connector includes a ferrule holder configured to receive a ferrule that terminates an optical fiber cable, a connector sub-assembly configured to receive an optical fiber cable and to hold the ferrule holder, a connector body configured to hold the connector sub-assembly, a shroud configured to encircle the connector body, and a housing configured to encircle a portion of the shroud. The connector body is configured to include a first mating member and a second mating member. The first mating member is configured to include a cantilevered flange, and the second mating member is configured to include a groove on an inner surface of the second mating member. The cantilevered flange is configured to engage with the groove to securely fasten the first mating member with the second mating member.