Abstract: A temperature controller is used for a gain fiber of a fiber amplifier. The controller includes a heat transfer structure and one or more temperature sinks, such as cooling plates. The heat transfer structure supports the gain fiber and is disposed in thermal contact with it. Portions of the temperature sink(s) are disposed in different thermal conductivity with sections of the heat transfer structure. For example, the sinks may have different material properties and/or material thicknesses. Also, portions of the temperature sink(s) can have different cooling rates. The different thermal conductivities conduct the heat from parts of the gain fiber differently from one another. In the end, an onset of Stimulated Brillouin Scattering (SBS) on the laser light path can be mitigated by conducting heat from the gain fiber with the different thermal conductivities.

Abstract: The present disclosure generally relates to devices, which may be used in communication or optoelectronic modules for example, suitable for arrayed positioning of a plurality of fiber optical components. In one form, an optoelectronic module includes a printed circuit board (PCB) and at least one optical component array device including an array of laterally or radially spaced receptacles configured to receive an optical component. One or more of the receptacles includes a fused fiber optical component positioned therein. A recursive fiber may extend between an output of a first fused fiber optical component and an input of a second fused fiber optical component, and an optical fiber routing member may be coupled to the PCB and include a plurality of guides extending away from the PCB and defining a pathway for routing optical fibers relative to the PCB.

Abstract: An optoelectronic module includes a housing and a printed circuit board (“PCB”) positioned within the housing. A positioning member is coupled to the PCB and includes one or more receptacles each configured to receive and secure positioning of an optical component relative to the PCB. The positioning member may include a plurality of receptacles positioned relative to one another in an arrangement defining a vertical array of receptacles, a lateral array of receptacles, or both. In one form, an optical component, when positioned in a receptacle of the positioning member, is spaced from the PCB. The positioning member may be formed of a thermally insulative or thermally conductive material, and a number of optical fibers may be routed between the positioning member and the housing.

Abstract: The present disclosure generally relates to devices, which may be used in communication or optoelectronic modules for example, suitable for arrayed positioning of a plurality of fiber optical components. In one form, an optoelectronic module includes a printed circuit board (PCB) and at least one optical component array device including an array of laterally or radially spaced receptacles configured to receive an optical component. One or more of the receptacles includes a fused fiber optical component positioned therein. A recursive fiber may extend between an output of a first fused fiber optical component and an input of a second fused fiber optical component, and an optical fiber routing member may be coupled to the PCB and include a plurality of guides extending away from the PCB and defining a pathway for routing optical fibers relative to the PCB.

Abstract: A housing for a pluggable module may include a first seating protrusion, a second seating protrusion, and a locking protrusion. The first seating protrusion may have a first seating surface facing a first direction. The second seating protrusion may have a second seating surface facing a second direction opposite the first direction. The second seating surface may be positioned parallel to the first seating surface. The second seating protrusion may be offset relative to the first seating surface in a direction parallel and a direction perpendicular to the first seating surface. The locking protrusion may have a locking surface facing the first direction. The locking surface may be positioned parallel to the first seating surface. The locking surface may be offset relative to the first seating surface in the direction perpendicular to the first seating surface.

Abstract: An optoelectronic module includes a housing and a printed circuit board (“PCB”) positioned within the housing. A positioning member is coupled to the PCB and includes one or more receptacles each configured to receive and secure positioning of an optical component relative to the PCB. The positioning member may include a plurality of receptacles positioned relative to one another in an arrangement defining a vertical array of receptacles, a lateral array of receptacles, or both. In one form, an optical component, when positioned in a receptacle of the positioning member, is spaced from the PCB. The positioning member may be formed of a thermally insulative or thermally conductive material, and a number of optical fibers may be routed between the positioning member and the housing.

Abstract: A housing for a pluggable module may include a first seating protrusion, a second seating protrusion, and a locking protrusion. The first seating protrusion may have a first seating surface facing a first direction. The second seating protrusion may have a second seating surface facing a second direction opposite the first direction. The second seating surface may be positioned parallel to the first seating surface. The second seating protrusion may be offset relative to the first seating surface in a direction parallel and a direction perpendicular to the first seating surface. The locking protrusion may have a locking surface facing the first direction. The locking surface may be positioned parallel to the first seating surface. The locking surface may be offset relative to the first seating surface in the direction perpendicular to the first seating surface.

Abstract: The present disclosure generally relates to devices, which may be used in communication or optoelectronic modules for example, suitable for arrayed positioning of a plurality of fiber optical components. In one form, an optoelectronic module includes a printed circuit board (“PCB”). The module also includes an optical component array device which includes an elongated support member and an array of fused fiber optical components positioned around and coupled with the elongated support member. A recursive fiber may extend between an output of a first fused fiber optical component and an input of a second fused fiber optical component, and an optical fiber routing member may be coupled to the PCB and include a plurality of guides extending away from the PCB and defining a pathway for routing optical fibers relative to the PCB.

Abstract: In one embodiment, an optical device assembly is provided. The optical device includes a housing with a moisture-resistant sealed cylindrical cavity in which first and second optical surfaces are optically coupled, the first optical surface being disposed on a first optical element that is within a first end of the cylindrical cavity and the second optical surface being disposed on a second optical element that is within a second end of the cylindrical cavity that is opposite the first end.

Abstract: In one aspect, an etalon assembly is provided. The etalon assembly includes an inner housing having a collimating lens and an etalon. The etalon assembly further includes a fiber pigtail assembly optically aligned with respect to the collimating lens and affixed to the inner housing. Additionally, the etalon assembly includes an outer glass housing with an inner cavity, the inner housing being affixed to a first end of the outer glass housing and a glass header containing one or more sealed electrical pins being affixed to a second end of the outer glass housing that is opposite the first end.

Abstract: According to an exemplary embodiment of the present invention, an apparatus for selectively introducing birefringence in an optical fiber includes an actuator which selectively exerts a force on the fiber, and a registration key which selectively orients an axis of the optical fiber at predetermined azimuths. According to another illustrative embodiment of the present invention, an apparatus for changing the polarization state of an optical signal includes a plurality of sequentially connected phase shifters, wherein each of the phase shifters is adapted to exert a force on an optical fiber disposed therein. Each of the plurality of phase shifters includes a registration key which selectively orients an axis of the optical fiber disposed in the registration key at a predetermined azimuth.

Abstract: An ejection system for engaging a transceiver to a host circuit board in a guide rail having a front and back orientation and for ejecting said transceiver from said guide rail, said system comprising: (a) a latching mechanism within said guide rail adapted for latching to a projection extending from a housing of a transceiver when said transceiver is moved backward on said guide rail to an engaging position, thereby preventing said transceiver from moving forward; (b) resilient means within said guide rail adapted for urging said transceiver forward when said transceiver is in said engaging position; and (c) a release mechanism within said card guide and adapted for disengaging said latching mechanism from said projection when said release mechanism is actuated to a releasing position, thereby allowing said resilient means to move said transceiver forward.

Abstract: A system for compensating polarization mode dispersion of optical signals in an optical transmission line. The device includes first and second optical lines and a polarization splitter adapted to be operably connected to an optical transmission line. The polarization splitter is configured to split the principle states of polarization of an optical signal from the optical transmission line into first and second optical signal components that travel along the first and second optical lines, respectively. The device includes a stretcher that is configured to selectively vary the length of at least a selected one of the first and second optical lines. A controller is operatively connected to the stretcher, and controls the stretcher to compensate for polarization mode dispersion present in the optical transmission line. The device also includes an optical output line and a polarization combiner operatively connected to the first and second optical lines.

Abstract: According to an exemplary embodiment of the present invention, an apparatus for selectively introducing birefringence in an optical fiber includes an actuator which selectively exerts a force on the fiber, and a registration key which selectively orients an axis of the optical fiber at predetermined azimuths.

Abstract: An ejection system for engaging a transceiver to a host circuit board in a guide rail having a front and back orientation and for ejecting said transceiver from said guide rail, said system comprising: (a) a latching mechanism within said guide rail adapted for latching to a projection extending from a housing of a transceiver when said transceiver is moved backward on said guide rail to an engaging position, thereby preventing said transceiver from moving forward; (b) resilient means within said guide rail adapted for urging said transceiver forward when said transceiver is in said engaging position; and (c) a release mechanism within said card guide and adapted for disengaging said latching mechanism from said projection when said release mechanism is actuated to a releasing position, thereby allowing said resilient means to move said transceiver forward.

Abstract: A low profile switch having a receptacle assembly and a plug assembly mounted to surfaces which are movable with respect to each other. The receptacle assembly includes a housing with a defined recess into which extend a pair of contact members resiliently biased into engagement with each other. The plug assembly includes a housing having an elongated extension with a pair of contact members disposed on opposed sides thereof so that the extension can be moved into the recess of the receptacle assembly, separate the contact members of the receptacle assembly, and engage the contact member of the receptacle assembly with respective ones of the contact members of the plug assembly. Thus, when the receptacle and plug assemblies are unmated, the receptacle assembly provides a shunted circuit condition and when the receptacle and plug assemblies are mated, two circuit paths are established between the receptacle and plug assemblies.

Abstract: A connector (10) to connect electrical leads to an inner tube (12) and a spaced apart outer tube (14). A body (16) having a center bore (20) is disposed in an opening (26) in the outer tube (14) and is secured to the outer tube (14) with the body (16) extending outwardly. An adapter (48) is disposed in the bore (20) in the body (16). A coaxially mounted conductor (52) is retractably disposed in the adapter (48). The conductor (52) is electrically insulated from the adapter (48). The conductor (52) has an end (54) which makes electrical contact with the inner tube (12). Electrical leads are attached to the body (16) and to the conductor (52).

Abstract: A connector (10) for interconnecting a daughter card to a mother board using a flexible circuit element (64) joining the connector contacts (54) to the daughter card traces (76), while pin sections (56) of the contacts depend from the connector for insertion into mother board through-holes. A plate (82) of dielectric material is placed atop the terminations of the flexible circuit element to the contacts, with plate apertures (86) receiving the upper contact sections (66) and solder terminations thereinto, with potting compound (98) then placed in the apertures embedding and sealing the terminations, whereafter the plate provides enhanced strain relief.

Abstract: An electrical connector assembly (10) of very low profile for interconnecting a daughter card to a mother board, mountable onto mother board (150) and having a housing (12) and an array of contacts (40) having elongate pin sections (42) insertable into through-holes (156) of mother board (150). Short pin sections (48) extend above the planar body section (14) of the housing and through apertures (122) of termini (120) of circuit traces (102) of a flexible circuit element (100) and soldered to said termini. Potting material embeds, seals and insulates the solder joints and short pin sections securing the flexible circuit element to the housing. Side portions (106) of the flexible circuit element extend upwardly from the housing to regions (110) of exposed trace portions (116) to be soldered to circuit traces of a daughter card (170).

Abstract: An electrical connector assembly (10) of low profile for mounting onto a mother board (150), and having a housing (12) and an array of contacts (40) having elongate pin sections (42) insertable into through-holes (156) of mother board (150). The assembly includes a thin apertured organizer (50) movable along pin sections (40) and further includes a pair of guide posts (80) affixed to the housing (12) for example and extending through larger-diametered apertures (58) through organizer flanges (60) to leading ends (84) insertable into guide holes (154) of mother board (100). Organizer (50) abuts board (15) and is thereafter urged relatively toward and against housing (12) upon full mounting, being movable along guide posts (80) and pin sections (42). The assembly is accurately positionable with respect to the through-hole array by reason of the guide post leading ends (84) being received into guide holes (154) prior to pin section leading ends (44 ) entering through-holes (156).