A system includes a housing including a front panel, a rear panel, an upper panel, and a lower panel. The system includes a first circuit board or substrate, at least one data processor coupled to the first circuit board or substrate and configured to process data, and at least one optical module coupled to the first circuit board or substrate. Each optical module is configured to perform at least one of (i) convert input optical signals to electrical signals that are provided to the at least one data processor, or (ii) convert electrical signals received from the at least one data processor to output optical signals. The system includes at least one inlet fan mounted near the front panel and configured to increase an air flow across a surface of at least one of (i) the at least one data processor, (ii) a heat dissipating device thermally coupled to the at least one data processor, (iii) the at least one optical module, or (iv) a heat dissipating device thermally coupled to the at least one optical module. The system includes at least one laser module configured to provide optical power to the at least one optical module.

A plug connector is attachable with an optical fiber cable and is connectable with a receptacle connector. The receptacle connector comprises a receptacle shell. The plug connector comprises a front holder, a cable holding portion, a rear holder and a coupling member. The front holder is made of metal. The front holder is mated with the receptacle shell when the plug connector is connected with the receptacle connector. The cable holding portion is made of metal. The cable holding portion is configured to hold the optical fiber cable. The rear holder guards the cable holding portion. The rear holder comprises, at least in part, a thermal insulating portion made of non-metal material. The coupling member couples the front holder and the rear holder with each other. Each of the coupling member and the front holder is in contact with the rear holder only on the thermal insulating portion.

An object is to be capable of housing an optical fiber that connects between components not to exceed a bending limit of the optical fiber in a housing of a pluggable optical module. A pluggable electric connector (11) is configured to be insertable into and removable from an optical communication apparatus (93). An optical output module (12) outputs an optical signal (LS1) and a local oscillation light (LO). An optical reception module (13) outputs a communication data signal (DAT) generated by demodulating using the local oscillation light (LO). A pluggable optical receptor (15) is configured in such a manner that optical fibers are insertable thereinto and removable therefrom. A first optical fiber (F11) is connected between the optical output module (12) and the pluggable optical receptor (15). A second optical fiber (F12) is connected between the optical output module (12) and the optical reception module (13). A third optical fiber (F13) is connected between the optical reception module (13) and the pluggable optical receptor (15). Optical fiber housing means winds extra lengths of the first to third optical fibers (F11 to F13) around a guide.

A system includes a housing having a front panel, a substrate that is positioned at a distance from the front panel, and a data processor mounted on the substrate. The system includes a pluggable module having an optical module, at least one first optical connector, a first fiber optic cable optically coupled between the optical module and the first optical connector, and a fiber guide positioned between the optical module and the first optical connector and provides mechanical support for the optical module and the first optical connector. The optical module receives optical signals from the first optical connector and generates electrical signals based on the received optical signals, and the electrical signals are transmitted to the data processor. The pluggable module has a shape that enables the pluggable module to pass through an opening in the front panel to enable the optical module to be coupled to the substrate.

A housing for an electronic device includes a panel, where the panel includes a window. A cage includes a plurality of panels and a first end and a second end that opposes the first end. The cage further includes an opening at its first end and an enclosure disposed between the panels of the cage. Connecting structure is disposed at the first end of the cage, where the connecting structure secures the first end of the cage to the panel. The cage is suitably dimensioned to receive and retain a portion of a pluggable module within the enclosure when the pluggable module is inserted within the opening at the first end of the cage.

A module for multiple network pluggable optics is disclosed. The module includes a Printed Circuit Board (PCB); a faceplate connected to the PCB; a plurality of cage assemblies connected to the PCB, each cage assembly is configured to receive a pluggable optical module via a corresponding opening in the faceplate; and a shared heat exchanger that is integrally formed and substantially covers the plurality of cage assemblies, wherein the shared heat exchanger is configured to cool multiple pluggable optics in the plurality of cage assemblies.

A technique and corresponding device to provide for a floating heat sink is disclosed. The technique includes a method that allows for insertion of an electronic component (e.g., an optical transceiver) into a cage that has a pre-installed heatsink. At the beginning phases of insertion, no friction is present between the electronic component and the heatsink. At or very near an insertion end phase (the electronic component is almost fully inserted), an actuator (e.g., roller or button) is impacted to impart a pivot motion via a lever arm to cause lowering of the heatsink toward the electronic component. A thermal interface material (TIM) may therefore be present to establish a thermal coupling between the heatsink and the electronic component. The TIM and heatsink contact the electronic component via a downward motion (caused by the pivot) to provide a nearly frictionless sliding impact to the TIM.

An optical transceiver includes an outer part provided outside the apparatus upon an engagement of the optical transceiver with the apparatus. The outer part includes a first spindle, a rotational member, a sliding member. The rotational member is configured to rotate on the first spindle. The sliding member is configured to move along the first direction. The rotational member has a hole. The sliding member has a second spindle. The first spindle and the second spindle are fit with the hole. The optical transceiver includes an inner part provided inside the apparatus upon the engagement with the apparatus. The hole has a first circular area, a second circular area, and a straight area. The first spindle is fit with the first circular area. The second spindle is fit with the second circular area. The straight area is connected between the first circular area and the second circular area.

An optical module includes a shell, an elastic sleeve and a conductive fiber sheet. The shell has a groove disposed on an outer wall thereof. The elastic sleeve includes a metal frame and a plurality of metal elastic pieces. The metal frame is sleeved in the groove, and the metal frame is fixedly connected to the shell. The plurality of metal elastic pieces are disposed on an edge of the metal frame and extend to an outside of the metal frame. The conductive fiber sheet is disposed between the shell and the elastic sleeve for connecting the shell and the elastic sleeve.

Methods include, for each of a plurality of pluggable optical transceivers that are fiber-coupled to respective inputs of a passive wavelength division multiplexer having a predetermined loss profile defining a path specific loss between each input and a common output, sending an optical output signal along an optical signal path while the other optical transceivers of the plurality are not sending optical output signals and measuring an optical power of the sent optical output signal at an input of a local optical amplifier downstream from an output of the wavelength division multiplexer, wherein the local optical amplifier is configured to transmit the optical output signals to a distant location, and, based on the measured optical powers, determining a loss distribution across the optical output signals at the input of the local optical amplifier by subtracting the predetermined path specific losses of the wavelength division multiplexer, comparing a variation in the loss distribution to a nominal variation to determine a defect in a transceiver fiber path associated with a higher loss component of the distribution where the variation exceeds the nominal variation, comparing an average or maximum loss in the loss distribution to a nominal average or maximum allowable loss to determine a defect in a common fiber path downstream from the multiplexer, and adjusting one or more of the optical powers of the optical output signals produced by the optical transceivers before transmission through the multiplexer, by an optical power offset that produces a predetermined flat optical power spectrum profile at the input of the local optical amplifier and that increases a transmission distance over which the optical output signals decodably propagate.