Abstract: Photonic devices are disclosed including a first cladding layer, a first electrical contact comprising a first lead coupled to a first dielectric portion, a second electrical contact comprising a second lead coupled to a second dielectric portion, a waveguide structure comprising a slab layer comprising a first material, and a second cladding layer. The slab layer may be coupled to the first dielectric portion of the first electrical contact and the second dielectric portion of the second electrical contact. The first dielectric portion and the second dielectric portion may have a dielectric constant greater than a dielectric constant of the first material.

Abstract: An optical network architecture can include a first pair of tapered mixing rods and a second pair of tapered mixing rods. A first plurality of plastic optical fibers is communicatively coupled from the first pair of tapered mixing rods to a first plurality of line replaceable components, and a second plurality of plastic optical fibers is communicatively coupled from the second pair of tapered mixing rods to a second plurality of line replaceable components. At least one optical fiber communicatively coupled from the first pair of tapered mixing rods to the second pair of tapered mixing rods, the at least one optical transmission line comprising a hard clad silica optical fiber.

Abstract: A near eye optical display includes a waveguide comprising a first surface and a second surface, an input coupler, a fold grating, and an output grating. The input coupler is configured to receive collimated light from a display source and to cause the light to travel within the waveguide via total internal reflection between the first surface and the second surface to the fold grating; the fold grating is configured to provide pupil expansion in a first direction and to direct the light to the output grating via total internal reflection between the first surface and the second surface; and the output grating is configured to provide pupil expansion in a second direction different than the first direction and to cause the light to exit the waveguide from the first surface or the second surface.

Abstract: A method of installing a cable through a duct by blowing the cable with a stream of compressed air. The method comprises dispersing a nebulized lubricant in the stream of compressed air, causing the stream of compressed air to deposit the nebulized lubricant onto the cable and to blow it into the duct. An apparatus for carrying out the method is also disclosed.

Abstract: A clamp assembly includes a body having a jaw receiving cavity. A jaw actuator assembly is positioned within the jaw receiving cavity. A first jaw member is positioned within a first jaw guide associated with the body and the jaw receiving cavity and is operatively coupled to the jaw actuator assembly. A second jaw member is positioned within a second jaw guide associated with the body and the jaw receiving cavity and is operatively coupled to the jaw actuator assembly. The first and second jaw members are movable within the jaw receiving cavity between a loading position and a clamping position. The jaw actuator assembly moves the jaw members from the loading position and the clamping position. The clamp assembly applies sufficient clamping or gripping force on the fiber optic cable to hold the fiber optic cable without degrading or damaging the fiber optic cable resulting in signal loss.

Abstract: Fiber optic connectors, cable assemblies and methods for making the same are disclosed. In one embodiment, the optical connector comprises a housing and a ferrule. The housing comprises a longitudinal passageway between a rear end and a front end, and, a part of the rear portion of the housing comprises a round cross-section and a part of the front portion of the housing comprises a non-round cross-section with a transition region disposed between the rear portion and the front portion.

Abstract: A fiber splice closure for housing an optical connection between a distribution cable and at least one drop cable of an optical network includes a base and an insert. The base includes round drop cable ports configured to receive a drop cable containing a first optical fiber. Screw holes are arranged in a radial side wall of the drop cable ports and receive a fixing device to secure the drop cable. A round port receives a distribution cable containing a second optical fiber. A clamp secures the distribution cable to the base. An insert has first and second wrap guides that house excess first optical fiber.

Abstract: The invention provides a diffractive waveguide element, waveguide stack, personal display and method of forming a viewable image. The element comprises a waveguide region defined by two optical surfaces between which light can propagate by total internal reflections, the optical surfaces having surface profiles, and at least one diffractive grating capable of modifying the light filed within the waveguide region. According to the invention, the surface profile of at least one of said optical surfaces is a staircase profile.

Abstract: A field installable fiber optic connector is formed without the need to splice two opposing optical fibers together. A ferrule flange assembly with one or more crimp zones secures an optical fiber therein. The assembly is secured within a plug frame housing that has a bias spring, both secured therein by an extender cap. A cable retainer with at least two wings secures the optical cable when a retainer nut is screwed onto a backpost of the extender cap.

Abstract: A beam combiner array assembly including an array block having a back wall and a front surface and a plurality of aligned and sealed channels extending from the back wall to the front surface. A lens array including a plurality of lenses is secured to the front surface of the block so that one of the lenses is aligned with each channel, and a plurality of fiber flanges are secured to the back wall of the block so that a separate one of the flanges is aligned with each channel. A hollow core fiber extends through each flange and the back wall so that an end of the fiber is positioned within one of the channels. A beam that propagates down each fiber is emitted into the channel, focused by the lens and emitted from the assembly as a collimated beam.

Abstract: An optoelectronic module. In some embodiments, the module includes: a housing, a substantially planar subcarrier, a photonic integrated circuit, and an analog electronic integrated circuit. The subcarrier has a thermal conductivity greater than 10 W/m/K. The photonic integrated circuit and the analog electronic integrated circuit are secured to a first side of the subcarrier, and the subcarrier is secured to a first wall of the housing. A second side of the subcarrier, opposite the first side of the subcarrier, is parallel to, secured to, and in thermal contact with, an interior side of the first wall of the housing.

Abstract: A method for aligning a first optical transceiver includes steps of splitting, directing, recording, and actuating. The splitting step includes splitting a light beam into a) a reference beam that propagates along a common optical path within the first optical transceiver and b) a transmit beam that that propagates away from the first optical transceiver and toward a second optical transceiver. The directing step includes directing, with a beam director, a receive beam from the second optical transceiver onto the common optical path. The recording step includes recording, with a tracking focal-plane array (FPA) that intersects the common optical path, a reference-position of the reference beam and an initial-received-position of the receive beam on the tracking FPA. The actuating step includes actuating the beam director based upon the initial-received-position to achieve a subsequent position of the receive beam on the tracking FPA.

Abstract: An optical fiber alignment mechanism (100) operates to align optical fibers (102). The mechanism can include a key element (120, 130) arranged on the cladding (112) of an optical fiber (102). The key element (120, 130) can engage with a corresponding element of another optical fiber (102) to align the cores (108) of the mating optical fibers. The key element (120) of an optical fiber (102) can also be inserted into a corresponding keyway (226) of a fiber alignment hole (222) of a ferrule (200) such that the optical fiber (102) is oriented properly within the ferrule (200).

Abstract: An eyepiece for projecting an image to an eye of a viewer includes a first planar waveguide positioned in a first lateral plane, a second planar waveguide positioned in a second lateral plane adjacent the first lateral plane, and a third planar waveguide positioned in a third lateral plane adjacent the second lateral plane. The first planar waveguide includes a first diffractive optical element (DOE) coupled thereto and disposed at a first lateral position. The second planar waveguide includes a second DOE coupled thereto and disposed at a second lateral position. The third planar waveguide includes a third DOE coupled thereto and disposed at the second lateral position. The eyepiece further includes an optical filter positioned between the second planar waveguide and the third planar waveguide at the second lateral position.

Abstract: An optical fiber manufacturing method includes setting a first holding member and a rod inside a glass pipe, the first holding member made of glass and having plural holes formed, so that the rod is supported by the first holding member; filling glass particles between the rod and a glass pipe inner wall; holding the rod such that the rod and the filled glass particles are enclosed by the glass pipe inner wall and the first and second holding members, and sealing one end of the glass pipe and manufacturing an intermediate; and manufacturing an optical fiber from the intermediate, wherein a bulk density of the first and second holding members is set with reference to a bulk density of a filling portion made from the glass particles, and the predetermined range is determined according to a core diameter permissible variation range in its longitudinal direction.

Abstract: This application discloses an optical backplane system, which includes a first upper-level optical interconnection module, a first lower-level optical interconnection module, and a second lower-level optical interconnection module. The first upper-level optical interconnection module includes M1 first interfaces and N1 second interfaces in connection relationships. The first lower-level optical interconnection module includes L1 third interfaces and K1 fourth interfaces in connection relationships. The second lower-level optical interconnection module includes L2 third interfaces and K2 fourth interfaces in connection relationships. The first upper-level optical interconnection module is connected to one of the L1 third interfaces of the first lower-level optical interconnection module by using one of the N1 second interfaces.

Abstract: An integrated device and related instruments and systems for analyzing samples in parallel are described. The integrated device may include sample wells arranged on a surface of where individual sample wells are configured to receive a sample labeled with at least one fluorescent marker configured to emit emission light in response to excitation light. The integrated device may further include photodetectors positioned in a layer of the integrated device, where one or more photodetectors are positioned to receive a photon of emission light emitted from a sample well. The integrated device further includes one or more photonic structures positioned between the sample wells and the photodetectors, where the one or more photonic structures are configured to attenuate the excitation light relative to the emission light such that a signal generated by the one or more photodetectors indicates detection of photons of emission light.

Abstract: A dual polarity optical fiber adaptor that can accommodate and mate with optical fiber connectors with dual polarity is provided. In one example, a fiber optic adaptor module includes a housing having a top wall, a bottom wall, a first sidewall, and a second sidewall connecting the top wall and the bottom wall, the top and bottom walls and the first and second sidewalls defining an interior region in the housing, a partition wall disposed in the interior region connected between the top wall and the bottom wall, the partition wall defining one or more adaptors in the housing each having a connector connection port formed therein, wherein the partition wall has a center portion sandwiched between a first portion and a second portion, and a protruding tab formed in the center portion protruding outward from a first surface and a second surface of the first and the second portion, wherein the first and the second surfaces are vertically aligned.

Abstract: In a pluggable optical module, to easily and compactly house an optical fiber for connecting optical components in a housing in which a plurality of optical components are mounted. A pluggable optical module includes a first optical fiber housing unit a second optical fiber housing unit, and a housing. The first optical fiber housing unit can house a first optical fiber connected to a first optical component. The second optical fiber housing unit can house a second optical fiber connected to a second optical component. The housing can house the first optical fiber housing unit and the second optical fiber housing unit. The pluggable optical module is configured to be capable of being inserted into and removed from an optical communication apparatus and the housing constitutes an outer shape of the pluggable optical module.

Abstract: A surface-relief structure and techniques for fabricating the surface-relief structure are disclosed. The surface-relief structure includes a substrate, a plurality of ridges on the substrate, and a plurality of grooves each between two adjacent ridges. The plurality of ridges are slanted with respect to the substrate, and include a material having a refractive index at least 2.3. Regions of the substrate at bottoms of the plurality of grooves include at least one of hydrogen or nitrogen at a concentration of at least 1010/cm3.