Abstract: A spring push with a main body, a crimp portion and two extensions also provides a trigger extending from the main body. The extensions provide engagement with the connector housing and also surfaces to engage the spring. The spring push may be a single component or be comprised of two separate pieces. An adapter is also disclosed with a cut-out portion on a bottom side.

Abstract: A communications panel includes a chassis configured to receive at least one spool arrangement. Each spool arrangement includes a spool and at least one optical termination port that rotates in unison with the spool. PLM can be provided at the communications panel so that PLI stored electronically on optical connectors received at the optical termination ports can be provided to a data management network via the panel.

Abstract: A fiber optic ferrule and a guide pin clamp allows for changing guide pins in the field. The guide pin clamp has a forward clamp portion, a rearward clamp portion configured to engage the biasing spring and a guide pin retaining plate. The forward clamp portion and the rearward clamp portion move relative to one another to also move guide pin retaining plate from a first position to a second position to allow for the removal or insertion of guide pins.

Abstract: An optical fiber comprises a glass fiber having a core and a cladding with which the core is covered, and a coating resin layer with which the glass fiber is covered, the coating resin layer having a colored layer of a thickness of 10 ?m or more, wherein a change rate of a yellow index of the coating resin layer after aging due to temperature and humidity under an environment of 85° C. and 85% RH for 30 days is 5 or less per day.

Abstract: Provided is a thermo-optic optical switch including an input waveguide configured to receive an optical signal, an output waveguide configured to output the optical signal, branch waveguides branching from the input waveguide to be connected to the output waveguide, and heater electrodes disposed on the branch waveguides and configured to heat the branch waveguides, wherein the branch waveguides includes first and second phase shifters having first and second thermo-optic coefficients of opposite signs.

Abstract: To provide a modulation control method and an optical transmission device that realize high reliability by more stably performing bias control of an optical modulator using an optical QAM scheme, an optical transmitter according to the present invention comprises a first waveguide and a second waveguide, wherein each of the first waveguide and the second waveguide are provided with an optical modulator that modulates a carrier light with a modulation driving signal that has multiple strength level values, a phase shift unit that provides a predetermined phase difference between a first optical signal outputted from the first waveguide and a second optical signal outputted from the second waveguide, a light detector that detects and photoelectrically converts a portion of a multiple value optical signal obtained by multiplexing the first optical signal and the second optical signal which have been provided with the phase difference and a control circuit that, on the basis of signal amplitude information obtain

Abstract: A Fiber Bragg grating (FBG) sensor structure, a method of fabricating a FBG sensor structure, and a method of employing a FBG sensor structure comprising an optical fiber portion having at least one FBG formed therein. The FBG sensor structure comprises an optical fiber portion having at least one FBG formed therein; and a sleeve structure capable of transferring vibrations and/or strain along a length thereof; wherein the optical fiber portion is coupled to the sleeve structure such that the central wavelength of the FBG, is variable under the transferred vibrations and/or strain.

Abstract: Networking systems and methods of assembly are described that provide a modular system that includes a main networking box and a detachable module. The main networking box and the detachable module are configured to be connected to each other on a datacenter rack via board-to-board connectors to provide the desired connections to the network, but can also be unlocked and detached from each other, such as to allow the main networking box to be replaced. In this way, the main networking box can be replaced in the field to provide a repair, or the detachable module can be replaced to provide a different connection type, without requiring the other component and/or its connections to be disturbed.

Abstract: A Mach-Zehnder modulator includes: a semiconductor structure having a first waveguide portion, a second waveguide portion, and a third waveguide portion, which are disposed on the first area, the second area, and the third area of a principal surface of substrate, respectively; an embedding resin body having an opening on the first waveguide portion; an ohmic electrode including a first ohmic electrode portion connected to the first waveguide portion through the opening of the embedding resin body, and a second ohmic electrode portion disposed on the embedding resin body in the second area; and a conductor including a first conductive portion extending along the first ohmic electrode portion, and a second conductive portion disposed on the embedding resin body and having a width greater than that of the second ohmic electrode portion, the embedding resin body having a groove extending along an edge of the second ohmic electrode portion.

Abstract: A spool assembly includes a drum having a first axial end and an oppositely disposed second axial end. The drum includes an inner surface that defines a bore that extends through the first and second axial ends. A drum support is disposed in the bore of the drum. The drum support includes a first end and an oppositely disposed second end. The drum support has an exterior surface. The exterior surface of the drum support and the inner surface of the drum define a plurality of channels. A first flange is engaged to the first end of the drum support. A second flange is engaged to the second end of the drum support.

Abstract: The micro-optical systems disclosed herein employ a glass tube having a body, a front end, a back end, an outer surface, and a bore that runs through the body between the front and back ends and that has a bore axis. The outer surface has a maximum outer dimension between 0.1 mm and 20 mm and includes at least one flat side. At least one optical element is inserted into and operably disposed and secured within the bore. The micro-optical assemblies are formed by securing one or more micro-optical systems to a substrate at the flat side of the glass tube. The glass tube is formed by a drawing process that allows for the dimensions of the glass tube to be small and formed with relatively high precision. An example of a compact WDM micro-optical assembly that employs micro-collimators is disclosed.

Abstract: A measuring head includes a light source unit, a first image pickup element, a second image pickup element, an objective optical system, an optical path splitting element, a common optical path, a first optical path, and a second optical path. The common optical path is located on one side of the optical path splitting element, and the first optical path and a second optical path are located on the other side. The optical path splitting element is disposed at a position where the first optical path and the second optical path intersect. The light source unit and the first image pickup element are disposed at predetermined positions. The second image pickup element is disposed at a position different from the predetermined positions. Each of the predetermined positions is a focal position of the objective optical system or a position conjugate to the focal position of the objective optical system.

Abstract: A connector is disclosed that includes a housing and first and second attachment areas located in the housing and spaced apart from each other along the mating direction of the connector. The second, but not the first, attachment area is designed to move relative to the housing. The connector further includes an optical waveguide that is permanently attached to, and under a first bending force between, the first and second attachment areas. The connector also includes a light coupling unit located in the housing for receiving light from the optical waveguide and transmitting the received light to a mating connector along a direction different than the mating direction of the connector. The mating of the connector to the mating connector causes the optical waveguide to be under a greater second bending force between the first and second attachment areas.

Abstract: Embodiments of an optical fiber ribbon cable are provided. The optical fiber ribbon cable includes a cable jacket having an interior surface defining a central bore, at least one buffer tube located in the central bore of the cable jacket, and at least one optical fiber ribbon disposed within the at least one buffer tube. The at least one optical fiber ribbon includes a plurality of optical fibers, a polymer matrix surrounding the plurality of optical fibers, and a low-smoke, flame retardant (LSFR) coating surrounding the polymer matrix. The LSFR coating includes from 25 to 65% by weight of an inorganic, halogen-free flame retardant filler dispersed in a curable acrylate medium. Further, the inorganic, halogen-free flame retardant filler includes particles having, on average, a maximum outer dimension of 5 microns.

Abstract: A method of tuning a fiber optic connector includes: assembling the fiber optic connector to a partially assembled state; tuning the fiber optic connector in the partially assembled state; assembling the fiber optic connector to an assembled state; and tuning the fiber optic connector in the assembled state.

Abstract: A transmitting optical module that includes multi-laser diode (LDs) and a planar lightwave circuit (PLC) to multiplex optical beams each output from the optical sources is disclosed. The PLC is mounted on a carrier through a WG carrier in upside down arrangement. The LDs are also mounted on the carrier through an LD carrier. The LDs and the PLC are optical coupled with two lenses each having respective optical axes offset from the other such that the optical coupling of the optical beam inputting the PLC becomes a maximum.

Abstract: A rotary joint includes a fixed unit and a rotating unit arranged substantially orthogonal to a center axis and facing one another, as well as a substantially cylindrical light guide member arranged therebetween. A light-emitting device and a light-receiving device are provided on each of the units. The light guide member is configured such that an amount of the light from the light-emitting device on the fixed unit that is received by the light-receiving device on the rotating unit and an amount of the light from the light-emitting device on the rotating unit that is received by the light-receiving device on the fixed unit both exceed a prescribed minimum amount regardless of rotational positions of the rotating unit.

Abstract: A fiber connection assembly includes a first and a second coupling member. The first coupling member includes a first housing, a protrusion protruding from a first side of the first housing, and a first optical connector arranged in the protrusion. The second coupling member includes a second housing, a recess arranged at a first side of the second housing and a second optical connector arranged in the second housing in or next to the recess. The coupling members can be coupled by moving the first member relative to the second coupling member in a first direction towards and onto the second coupling member, thereby inserting the protrusion into the recess, and then by rotating the first coupling member relative to the second coupling member in a plane perpendicular to the first direction and around a rotation axis until the first optical connector is connected to the second optical connector.

Abstract: Provided is an optical transmitter module. The optical transmitter module includes a substrate, a ground layer disposed on the substrate, an electro-absorption modulated laser (EML) chip disposed on the ground layer to generate an modulated optical signal, a ground structure disposed on the EML chip and electrically connected to the ground layer, a matching resistor disposed on the ground structure, and a first bonding wire disposed between the EML chip and the matching resistor to electrically connect the EML chip to the matching resistor.

Abstract: A connector is disclosed that includes a light coupling unit designed to receive light from an input side of the light coupling unit and transmit the received light to a mating connector from an output side of the light coupling unit along a direction different than the mating direction of the connector. The light coupling unit rotates when the connector mates with the mating connector.