Abstract: Methods of fabricating a waveguide module are presented that include the steps of providing a glass substrate having first and second substantially planar parallel surfaces and comprising one or more cells in a first arrangement and singulating the glass substrate to produce one or more singulated cells. Singulated cells are treated with a chemical agent, laminated to a carrier substrate, processed, and delaminated from the carrier wafer and optionally subjected to further processing.

Abstract: A resonator modulator for modulating light in a photonic circuit, the modulator comprising: a capacitor formed of a ring-shaped insulating region sandwiched between an outer conductive region and an inner conductive region, wherein at least one of the outer conductive regions or the inner conductive regions is a polycrystalline semiconductor material.

Abstract: Systems and methods to implement a USB and Thunderbolt optical signal transceiver are described. One method includes detecting presence of a USB sideband signal received over an optical communication channel and associated with a USB communication request. Responsive to the detecting, the method may determine that the USB communication request corresponds to a USB communication mode and perform a sideband negotiation. The USB communication mode may be enabled. A specified number of channels associated with the USB communication request may be determined. USB communication may be performed using the specified number of channels over the optical communication channel in the USB communication mode.

Abstract: An optical fiber is provided that includes a core region and a cladding region. The core region is formed of silica glass doped with chlorine and/or an alkali metal. The cladding region surrounds the core region and includes an inner cladding directly adjacent to the core region, an outer cladding surrounding the inner cladding, and a trench region disposed between the inner cladding and the outer cladding in a radial direction. The trench region has a volume of about 30% ?-micron2 or greater. Additionally, the optical fiber has an effective area at 1550 nm of about 100 micron2 or less.

Abstract: A method for manufacturing an optical modulator is disclosed. The method includes a step of preparing a Mach-Zehnder modulator, a step of acquiring, based on a light transmittance in an arm waveguide, a relationship between a voltage applied to an electrode and a phase change amount of light propagating through the arm waveguide, a step of acquiring, based on the relationship, a voltage in which the phase change amount of the light propagating through the arm waveguide has a predetermined when the light is modulated, and a step of storing the voltage in a storage unit.

Abstract: Augmented reality and virtual reality display systems and devices are configured for efficient use of projected light. In some aspects, a display system includes a light projection system and a head-mounted display configured to project light into an eye of the user to display virtual image content. The head-mounted display includes at least one waveguide comprising a plurality of in-coupling regions each configured to receive, from the light projection system, light corresponding to a portion of the user's field of view and to in-couple the light into the waveguide; and a plurality of out-coupling regions configured to out-couple the light out of the waveguide to display the virtual content, wherein each of the out-coupling regions are configured to receive light from different ones of the in-coupling regions. In some implementations, each in-coupling region has a one-to-one correspondence with a unique corresponding out-coupling region.

Abstract: An optical fiber includes a glass portion, a primary coating layer, and a secondary coating layer. In the optical fiber, a value of microbend loss characteristic factor F?BL_G?? is 6.1 ([GPa?1·?m?2.5/rad8]·10?12) or less when represented by F?BL_G??=F?BL_G×F?BL_??, where F?BL_G is geometry microbend loss characteristic and F?BL_?? is optical microbend loss characteristic.

Abstract: An optical system includes a light-guide optical element (LOE) (10) having mutually-parallel first and second major external surfaces (11, 12) for guiding light by internal reflection, and a projector (100) that projects illumination corresponding to a collimated image from an aperture (101). The projector injects light in to the LOE via a coupling prism (30) attached to the first major external surface (11) that projects an image injection surface. A reflective polarizing beam splitter (51) is deployed at an interface between the major external surface (11) and the coupling prism (30) parallel to the major external surfaces, to selectively transmit illumination from the coupling prism into the LOE while trapping light already within the LOE so as to propagate within the LOE by internal reflection.

Abstract: A new fiber optic connector provides a smaller form factor by including two ferrule assemblies in a housing. The housing accepts a push-pull mechanism that allows for insertion and removal from a carrier as well as an adapter. The push-pull mechanism may also include a flexure member to return the push-pull mechanism. Polarity of the fiber optic connector may also be selected by use of the push-pull mechanism.

Abstract: Waveguide structures and methods of fabricating a waveguide structure. The structure includes a first waveguide core, a second waveguide core, and a third waveguide core adjacent to the first waveguide core and the second waveguide core. The third waveguide core is laterally separated from the first waveguide core by a first slot, and the third waveguide core is laterally separated from the second waveguide core by a second slot. The first waveguide core and the second waveguide core comprise a first material, and the third waveguide core comprises a second material that is different in composition from the first material.

Abstract: An optical module includes an upper shell, a lower shell, a circuit board, a base, a laser assembly and a silicon optical chip. The upper shell and the lower shell form a wrapping cavity. The circuit board is located in the wrapping cavity. The base is located on the circuit board or in a through hole of the circuit board. The laser assembly is located on the base, and is configured to provide light. The silicon optical chip is located on the base, and is configured to receive the light, and modulate the light to convert an electrical signal into an optical signal, and is configured to receive an optical signal from an outside of the optical module and convert the optical signal into an electrical signal.

Abstract: An optical device includes a light guide (LG) attached to a support component. The LG receives a display light from a light engine, and directs a first portion of the display light out of the LG to form an outcoupled light. The LG also causes a second portion of the display light to become incident upon an outer perimeter of the LG at one or more LG regions of the LG to form one or more stray lights, respectively. The LG may be mechanically coupled to the support component at one or more coupling regions positioned outside of the one or more LG regions. A wearable heads-up display (WHUD) can incorporate the optical device.

Abstract: One embodiment provides an apparatus for displaying an image comprising: a first optical substrate comprising at least one waveguide layer configured to propagate light in a first direction, wherein the at least one waveguide layer of the first optical substrate comprises at least one grating lamina configured to extract the light from the first substrate along the first direction; and a second optical substrate comprising at least one waveguide layer configured to propagate the light in a second direction, wherein the at least one waveguide layer of the second optical substrate comprises at least one grating lumina configured to extract light from the second substrate along the second direction, wherein the at least one grating lamina of at least one of the first and second optical substrates comprises an SBG in a passive mode.

Abstract: A new fiber optic connector provides a smaller form factor by including two ferrule assemblies in a housing. The housing accepts a push-pull mechanism that allows for insertion and removal from a carrier as well as an adapter. The push-pull mechanism may also include a flexure member to return the push-pull mechanism. Polarity of the fiber optic connector may also be selected by use of the push-pull mechanism.

Abstract: A device comprises first, second and third elements fabricated on a common substrate. The first element comprises an active waveguide structure comprising electrically pumped optical source supporting a first optical mode. The second element comprises a passive waveguide structure supporting a second optical mode in at least part of the second element. The third element, at least partly butt-coupled to the first element, comprises an intermediate waveguide structure supporting intermediate optical modes. At least part of the second element supports at least one optical mode that interacts with rare-earth dopants. A tapered waveguide structure in at least one of the second and the third elements facilitates efficient adiabatic transformation between the second optical mode and at least one of the intermediate optical modes. No adiabatic transformation occurs between any of the intermediate optical modes and the first optical mode.

Abstract: A method for manufacturing a circuit board structure with a waveguide is provided. The method includes: providing a plate including a top wall and sidewalls disposed on the top wall, an opening being defined between ends of two adjacent sidewalls away from the top wall; forming a conductive layer on the plate to obtain a conductive plate; providing a circuit board, the circuit board comprising an outer circuit layer; mounting the conductive plate on the outer circuit layer, causing the outer circuit layer to be disposed on the opening. The two adjacent sidewalls, the top wall between the two adjacent sidewalls, and the circuit board between the two adjacent sidewalls cooperatively constitutes a tube body of the waveguide, and the conductive layer and the outer circuit layer on an inner surface of the tube body cooperatively constitute a shielding of the waveguide.

Abstract: An undersea fiber optic cable routing architecture including a branching unit coupled to three trunk cables capable of switching individual fibers in each fiber pair within a cable to either of the other two cables. The branching unit comprises a plurality of optical switches and a controller for receiving remote command signals and configuring the optical switches in accordance with the remote command signals.

Abstract: A method may include (1) coating a segment of fiber optic cable with an adhesive substance, (2) forming a coil of the segment of fiber optic cable, (3) deforming the coil into a noncircular shape defining a slot external to the coil while obeying a minimum bend radius requirement for the segment of fiber optic cable, and (4) activating the adhesive substance to stabilize the noncircular shape of the coil. Various other methods and apparatuses, such as those for performing the deforming operation, are also disclosed.

Abstract: An undersea fiber optic cable architecture including a beach manhole (BMH) installed at a terrestrial site, a terrestrial station connected to the BMH by a terrestrial fiber optic cable, a first landing cable extending from the BMH into territorial waters adjacent the terrestrial site and connected to a first enhanced branching unit (EBU) located in the territorial waters, a second landing cable extending from the BMH into the territorial waters and connected to a second EBU located in the territorial waters, a recovery path cable connecting the first EBU to the second EBU, a first trunk cable extending from the first EBU into international waters, and a second trunk cable extending from the second EBU into the international waters.

Abstract: A method of operating an eyepiece waveguide having a first region and a second region includes directing light from a first projector to impinge on a first incoupling grating (ICG) and light from a second projector to impinge on a second ICG. Light from the first projector is diffracted into a first portion and a second portion of the first region of the eyepiece waveguide and out of the eyepiece waveguide. Light from the second projector is diffracted into a first portion and a second portion of the second region of the eyepiece waveguide and out of the eyepiece waveguide.