Abstract: An apparatus has N optical structures positioned on a two-dimensional lattice defining a plane. The N optical structures are configured to redirect light out of the plane. The N optical structures are collectively arranged in a configuration that includes select elements on the two-dimensional lattice. N optical waveguides are integrated in the plane to individually supply optical power to each of the N optical structures.

Abstract: A composite optical waveguide is constructed using an array of waveguide cores, in which one core is tapered to a larger dimension, so that all the cores are used as a composite input port, and the one larger core is used as an output port. In addition, transverse couplers can be fabricated in a similar fashion. The waveguide cores are preferably made of SiN. In some cases, a layer of SiN which is provided as an etch stop is used as at least one of the waveguide cores. The waveguide cores can be spaced away from a semiconductor layer so as to minimize loses.

Abstract: The present disclosure relates more particularly to active optical fibers, amplified spontaneous emission (ASE) sources using such active optical fibers, and imaging and detection systems and methods using such ASE sources. In one aspect, the disclosure provides an active optical fiber that includes a rare earth-doped gain core configured to emit radiation at at least a peak wavelength emitted wavelength when pumped with pump radiation having a pump wavelength; a pump core surrounding the gain core; and a cladding surrounding the pump core, wherein the value M=16R2(NA)2/?2 in which R is the gain core radius, NA is the active optical fiber numerical aperture, and ? is the peak emitted wavelength, is at least 50, or at least 100. The present disclosure also provides an optical source that includes the optical fiber coupled to a pump source.

Abstract: Systems and methods are provided for duplex-modulo connector comprising a carrier plate receiving a duplex ferrule. The carrier plate can include an entry slot that receives the duplex ferrule. The entry slot further includes neck spring leaves, and base spring leaves that support stabilizing the duplex ferrule and absorbing movement to support spring floating of the duplex ferrule. The duplex ferrule can include a receptacle connector housing, or a plug connector housing for aligning the duplex ferrule for blindmating with a complimentary duplex ferrule, wherein the carrier plate is coupled to the housing.

Abstract: An example method of manufacturing an optical interface. An optical socket may be provided that has an alignment feature that is to engage an optical connector, and first solder attachment pads. A printed circuit board may be provided that has an active optical device and second solder attachment pads. The optical socket may be connected to the printed circuit board by reflowing solder between the first and second solder attachment pads. The first and second solder attachment pads, the alignment feature, and the active optical device are positioned such that, while reflowing the solder, the solder automatically forces the optical socket into an aligned position.

Abstract: The disclosed system may include (1) a light projector that projects a two-dimensional image, (2) an optical waveguide that carries at least some light from the light projector before emitting at least a portion of the light from the optical waveguide, (3) a two-dimensional light detector that receives at least some of the portion of the light emitted from the optical waveguide, and (4) a controller that (a) causes the light projector to project light from at least one of multiple pixels, (b) receives information from the two-dimensional light detector based on light received at the two-dimensional light detector from the at least one of the multiple pixels, and (c) causes an alteration in an alignment of the light from the light projector relative to the optical waveguide based on the information. Various other systems and methods are also disclosed.

Abstract: An optical waveguide that performs both in-coupling and out-coupling using two diffractive optical elements is provided. Each optical element is a diffraction grating and can be applied to the same or different surface of the optical waveguide. The diffraction gratings overlap to form two overlapping regions. The first overlapping region in-couples light into the waveguide and the second overlapping region out-couples light from the optical waveguide. Because the optical waveguide only uses two gratings, and therefore only has two grating vectors, the optical waveguide is easier to manufacture than optical waveguides with a greater number of grating vectors.

Abstract: A sensing apparatus includes a sheath, a central member disposed in the sheath, at least one optical fiber disposed with the central member, and a film adhesive disposed between the central member and the sheath, the film adhesive provided in one or more sheets or strips and disposed in one or more layers between the central member and the sheath, and the film adhesive attached to the sheath.

Abstract: A ribbon handler device holds a twelve fiber ribbon during thermal stripping, cleaving and mass fusion splicing. The handler device includes a first body having a first array of grooves that are tapered to reduce a nominal spacing of a first set of optical fibers and a second body having a second array of grooves that are tapered to increase a nominal spacing of a second set of optical fibers such that each fiber of the first set of optical fibers aligns with a corresponding fiber of the second set of optical fibers for efficient splicing.

Abstract: A fiber sensor includes an optical fiber configured for operation at a wavelength from about 800 nm to about 1600 nm. The optical fiber includes a cladding that is defined by a fiber outer diameter and a core that is surrounded by the cladding. The core of the optical fiber has a Rayleigh scattering coefficient, ?s, that is controlled by controlling a concentration of one or more dopants in the core. The Rayleigh scattering coefficient is tuned to be within a predetermined range of an optimum Rayleigh scattering coefficient for a given total length, L, of the optical fiber. The predetermined range is from about 70% of the optimum ?s to about 130% of the optimum ?s.

Abstract: An embodiment of the invention relates to an optical device which is capable of realizing a secondary nonlinear optical phenomenon. The optical device is a fiber-type optical device which is comprised of glass containing SiO2, and includes a core region, a first cladding region, and a second cladding region. At least a part of a glass region configured by the core region and the first cladding region has such a repetition structure that a first section serving as a poled crystal region and a second section serving as an amorphous region are alternately disposed along a longitudinal direction of the optical device.

Abstract: An optical fiber distribution module includes a base having a surrounding wall, a cover, and a sealing element in the cover. A pair of cable ports are formed in the base wall to pass an outdoor fiber distribution cable through an interior region of the module. One or more fiber ports in the wall pass corresponding drop fibers from the interior region where the fibers connect to designated fibers of the distribution cable, to a number of premises for which the fibers are designated inside a multi-dwelling unit building. Grommet seals are dimensioned and formed to be inserted in any unused fiber ports, and to surround the distribution cable and the drop fibers in their corresponding ports. The grommet seals cooperate with the sealing element in the cover to seal all the ports from the environment when the module is closed.

Abstract: Provided is a light guide plate for an image display device which uses lead-free glass, has excellent color reproducibility and a light weight, and may obtain a wide viewing angle. A light guide plate for an image display device, which guides image light inputted from an image display element and outputs the image light toward a user's pupil, is configured to be made of lead-free glass having a refractive index of 1.8 or more with respect to a wavelength of the image light, and to have internal transmittance of 0.6 or more with respect to a wavelength of 400 nm when a plate thickness is 10 mm.

Abstract: A phased array that comprises a predetermined number of emitter/receiver elements; said emitter/receiver elements being arranged on a array formed of stacked rows, wherein the emitter/receiver elements in each row of the array are distributed according to a pseudo-random pattern; and the heights of the rows vary according to a pseudo-random pattern.

Abstract: An optical receptacle is disclosed. The optical receptacle includes a ferrule that includes an inner hole extending in a first direction and a distal end face having an opening in the inner hole, an optical fiber disposed in the inner hole, the optical fiber having a first end exposed from the opening, a metal member that includes a first through hole extending in the first direction and holds the ferrule in the first through hole, a metal body that includes a second thorough hole extending in the first direction and holds the metal member in the second thorough hole, a low dielectric constant material formed inside the ferrule and outside the optical fiber. The low dielectric constant material has a dielectric constant lower than a dielectric constant of the ferrule.

Abstract: A fiber optic enclosure assembly includes a housing having an interior region and a bearing mount disposed in the interior region of the housing. A cable spool is connectedly engaged with the bearing mount such that the cable spool selectively rotates within the housing. A termination module disposed on the cable spool so that the termination module rotates in unison with the cable spool. A method of paying out a fiber optic cable from a fiber optic enclosure includes rotating a cable spool, which has a subscriber cable coiled around a spooling portion of the cable spool, about an axis of a housing of the fiber optic enclosure until a desired length of subscriber cable is paid out. A termination module is disposed on the cable spool.

Abstract: A fiber optic enclosure assembly includes a housing having an interior region and a bearing mount disposed in the interior region of the housing. A cable spool is connectedly engaged with the bearing mount such that the cable spool selectively rotates within the housing. A termination module disposed on the cable spool so that the termination module rotates in unison with the cable spool. A method of paying out a fiber optic cable from a fiber optic enclosure includes rotating a cable spool, which has a subscriber cable coiled around a spooling portion of the cable spool, about an axis of a housing of the fiber optic enclosure until a desired length of subscriber cable is paid out. A termination module is disposed on the cable spool.

Abstract: An optical cable includes a plurality of optical fibers sealed within a metal tube, a polymer inner sheath surrounding the metal tube and operatively connected to the metal tube, and an outer sheath disposed over the polymer inner sheath.

Abstract: A system installed on an aircraft. The system includes a memory storing static information in one or more optical fibre gratings; and an interrogator. The interrogator includes a light source configured to transmit interrogation light to the memory, a receiver configured to receive return light from the memory, and an analyser configured to analyse the return light to obtain the static information.

Abstract: There is provided an intermittent connection type optical fiber ribbon in which at least a part of a plurality of optical fibers that are arranged to be in parallel come into contact with each other, and between a part or the entirety of the optical fibers, a connection portion at which the adjacent optical fibers are connected to each other with an adhesive resin, and a non-connection portion at which the adjacent optical fibers are not connected to each other with the adhesive resin, are intermittently provided in the longitudinal direction, in which an outer diameter dimension of the optical fiber is equal to or less than 0.22 mm, and an inter-center distance of the adjacent optical fibers is 0.20±0.02 mm, and in which at least a part of the outer periphery of the optical fiber has no adhesive resin attached thereto.