Abstract: An optical fiber management system (10) includes a telecommunications fixture (14) and a telecommunications tray (16) pivotally mounted to the telecommunications fixture (14) via a hinge structure (18) positioned at an edge (22) of the tray (16). At least one end (24) of the tray edge (22) that is spaced from the hinge structure (18) defines a fiber guide (26) having a generally cylindrical configuration with open ends (28) for guiding fibers in and/or out of the tray (16). The fiber guide (26) is nested within a reinforcement channel (46) defined by a generally U-shaped wall (48) of the telecommunications fixture (14), the U-shaped wall (48) defining opposing vertical wall portions (50) for abutting the cable guide (26) of the tray (16) for retaining the cable guide (26) within the reinforcement channel (46) during pivotal movement of the tray (16).

Abstract: Disclosed is a system for and a method of manufacturing of an optical system, including a first optical component, comprising a first waveguide and a carrier substrate, wherein the first optical component is arranged on the carrier substrate. The first optical component comprises a first markup set having a defined position/orientation with respect to the first waveguide, the carrier substrate has a second markup set detectable based on a relative position/orientation of the first and second markup sets when a desired orientation of the first waveguide relative to the carrier substrate is achieved in a reference plane extending parallel to a surface of the carrier substrate.

Abstract: An assembly of electronic components enabling reception of data using an optical fiber includes: a photodiode; an amplifier coupled to the photodiode; a flexible printed circuit board, the photodiode and amplifier physically mounted on the flexible printed circuit board; a cover, the cover configured to cover the photodiode and the amplifier, wherein the cover is physically attached to the printed circuit board so as to provide mechanical rigidity around the photodiode, and the cover having an optically transparent aperture containing a lens configured to focus modulated light signals from a fiber onto the photodiode; and conductive bond wires configured to directly electrically couple the amplifier and the photodiode to conducting traces of the flexible printed circuit board.

Abstract: In some embodiments, a cable assembly may include an outer jacket, a printer circuit board including light emitting diodes, and a cable configured to transmit information. In some embodiments, the outer jacket may include a channel opening and the printed circuit board may be configured to be positioned within the channel opening and between the cable and the outer jacket. In some embodiments, the cable assembly may include an inner jacket, an outer jacket, a printed circuit board including light emitting diodes, and a cable configured to transmit information. The inner jacket may include a channel opening, and the printer circuit board may be configured to be positioned within the channel opening and between the inner jacket and the outer jacket.

Abstract: Structures including a grating coupler and methods of fabricating a structure including a grating coupler. The structure includes structure includes a dielectric layer on a substrate, a first waveguide core positioned in a first level over the dielectric layer, and a second waveguide core positioned in a second level over the dielectric layer. The second level differs in elevation above the dielectric layer from the first level. The first waveguide core includes a tapered section. The structure further includes a grating coupler having a plurality of segments positioned in the second level adjacent to the second waveguide core. The segments of the grating coupler and the tapered section of the first waveguide core are positioned in an overlapping arrangement.

Abstract: A method for increasing the bandwidth of an electroabsorption modulator (EAM) includes the following steps. First, a plurality of p-i-n active waveguides for the EAM are defined on a p-i-n optical waveguide forming an EAM having a shorter p-i-n active waveguide length. Then, the bandwidth of the EAM can be increased. Second, the high-impedance transmission lines are used in series to connect the EAM sections to reduce the microwave reflection and then increase the device bandwidth. Finally, the impedance-controlled transmission lines for the signal input and output can not only reduce the parasitic effects resulting from packaging, but also reduce the microwave reflection resulting from the impedance mismatch at the device input and load.

Abstract: An optical fiber connector sub-assembly optical fiber connector sub-assembly for an optical fiber connector includes a ferrule holder carrier portion and a sleeve portion disposed rearward of the ferrule holder carrier portion along an axis of the connector. The sleeve portion is configured to be connected to the ferrule holder portion to permit relative articulating movement between the sleeve portion and the ferrule holder carrier portion, and the sleeve portion and the ferrule holder carrier portion are configured to be rotatingly fixed to one another.

Abstract: A waveguide apparatus for conveying a virtual image has first and second parallel planar surfaces. A first in-coupling diffractive optic on the first planar surface directs a first subset of image-bearing light beams into the waveguide and a second in-coupling diffractive optic on second planar surface directs a second subset of the image-bearing light beams into the waveguide. The first and second in-coupling diffractive optics are offset with respect to each other along the first and second parallel planar surfaces to independently direct the respective first and second subsets of the image-bearing light beams into the waveguide.

Abstract: A polarity switching hybrid interface is configured to couple both optical fibers and electrical conductors. The hybrid interface incorporates polarity switching circuitry such that the polarity of electrical contacts on a first side of the hybrid interface is opposite to the polarity of the electrical contacts on an opposite side of the hybrid interface. As such, the polarity of the electrical conductors coupled to each side of the hybrid interface need not be known. Each side of the hybrid interface is configured to interface with the same type of hybrid optical/electrical connector.

Abstract: A common component assembly is provided for a cable joint for joining a first submarine optical cable and a second submarine optical cable. The assembly includes a first end face including a first opening and a first flange for connection to a first cable termination unit of an undersea optical cable joint. The assembly also includes a second end face including a second opening and a second flange for connection to a second cable termination unit of an undersea optical cable joint. The assembly further includes a fiber tray connecting the first end face to the second end face. In addition, the assembly includes an optical assembly connected to a first side of the fiber tray. The optical assembly includes a free space optical add/drop multiplexer.

Abstract: A functional element includes functional titanium oxide. The functional titanium oxide includes crystal grains of one or more of ?-phase trititanium pentoxide (?-Ti3O5) and ?-phase trititanium pentoxide (?-Ti3O5). The functional titanium oxide includes the property that at least a portion of crystal grains of one or more of ?-phase trititanium pentoxide (?-Ti3O5) and ?-phase trititanium pentoxide (?-Ti3O5) changes into crystal grains of titanium oxide (TiO2) when the functional titanium oxide is heated to 350° C. or higher.

Abstract: An optical connection component includes optical fibers; one or a plurality of line members arranged in parallel with the optical fibers, line members having a lower elastic limit and being easier to undergo plastic deformation at room temperature than the optical fibers; a first securing member as a block having a plurality of capillaries extending parallel to one another or as a combination of a V-grooved board and a flat board, the V-grooved board having a plurality of V-grooves extending parallel to one another, the first securing member securing one-end portions of the optical fibers and one-end portions of the one or plurality of line members individually in the plurality of capillaries or in the plurality of V-grooves; and a second securing member that secures the optical fibers and the one or plurality of line members on a side near other-end portions of the one or plurality of line members.

Abstract: A display device including a laser-based light engine is disclosed. Optical interference effects due to the coherent nature of a laser light source are mitigated by shortening a coherence length of the laser source. The coherence length shortening is achieved by at least one of the following: providing a multiple longitudinal mode laser source, pulsing a laser source to achieve spectral broadening, or providing multi-emitter laser source(s) with emission wavelength varying from emitter to emitter.

Abstract: The present invention discloses an encoding apparatus, including: a polarization splitter-rotator PSR, a polarization rotation structure, and a modulator, where the PSR is configured to receive an input signal light, split the input signal light into two parts whose polarization modes are the same, and send the two parts to the polarization rotation structure and the modulator respectively; the polarization rotation structure has functions of rotating, by 180 degrees, a polarization direction of an optical signal entering the polarization rotation structure from one end, and keeping a polarization direction of an optical signal entering the polarization rotation structure from the other end unchanged; the modulator is configured to modulate a light input to the modulator; and the PSR is further configured to receive signal lights sent by the polarization rotation structure and the modulator, combine the two signal lights to send the output signal light.

Abstract: An optical fiber connector sub-assembly for an optical fiber connector includes a ferrule configured to hold an optical fiber therein, a ferrule holder configured to hold the ferrule, a retaining tube configured to hold the ferrule holder and receive a fiber optic cable, and a connecting tube configured to be rotatingly coupled with the ferrule holder and slidingly received by the retaining tube. The ferrule holder, the retaining tube, and the connecting tube are configured to receive an optical fiber, and the retaining tube and the connecting tube are configured to cooperate with one another to prevent relative rotation between the ferrule holder and the retaining tube.

Abstract: An assembly includes: first and second fiber optic cables, each of the first and second fiber optic cables including an exposed portion of an optical fiber and an overlying jacket, wherein the optical fiber of the first fiber optic cable is fusion spliced to the optical fiber of the second fiber optic cable to form a splice area; a splice protector that surrounds the splice area of the first and second fiber optic cables; a flexible tube that encircles the splice protector, the exposed portions of the first and second fiber optic cables, and end portions of the jackets of the first and second fiber optic cables, wherein the splice protector, the exposed portions of optical fibers of the first and second fiber optic cables reside in a lumen of the flexible tube; first and second adhesive barriers positioned between an inner surface of the flexible tube and the end portions of the first and second fiber optic cables, respectively; and an outer sleeve that circumferentially overlies the flexible tube and portion

Abstract: An optical system comprising: an optical assembly having a first optical surface and a rear optical surface, said optical assembly comprising at least three optical elements; an optical fiber comprising a core portion with a mode field diameter (MFD) expanded region optically coupled to the rear optical surface of the optical assembly, the optical fiber comprising a core region doped with chlorine in a concentration greater than 0.5 wt %, wherein the MFD expanded region is less than 5 cm in length, and has MFD at the fiber end coupled to the optical assembly that is a least 20% greater than the MFD at other end of the optical fiber; an optical signal source coupled to first optical surface of the optical assembly, such that the optical signal provided by the optical signal source is routed along an optical path formed by the optical assembly to the mode field diameter expanded region of said optical fiber.

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 lamina 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: The present disclosure generally relates to printed circuit boards or printed circuit board assemblies for fiber optic communications. In one non-limiting embodiment, a method of assembling an optoelectronic assembly includes providing a printed circuit board with a first metal coating and an optical component with a second metal coating. The method further includes positioning the optical component relative to the printed circuit board with at least some portion of the first metal coating aligned with or adjacent to at least some portion of the second metal coating, and applying solder between the first metal coating and the second metal coating to couple the optical component and the printed circuit board.

Abstract: An outdoor rated ingress protected ruggedize connector with molded inner body configured with a plug frame to accept a ferrule. A ferrule assembly has a flange that accepts one or more alignment members formed as part of the inner body. The alignment members and align the ferrule assembly under the force of a bias spring supported by a spring push integrated into a back body.