摘要:
An optical transceiver having an optical subassembly electrically connected to a circuit board with an RF connector is disclosed. The optical transceiver further provides a holder for support the RF connector. The circuit board is held by a leg and an arm each being provided in the holder, and putting the circuit board therebetween.
摘要:
An optical transceiver capable of narrowing an extra space for an external optical fiber is disclosed. The optical transceiver of an embodiment provides an optical receptacle with a port, to which the external optical fiber is to be inserted, headed for a direction in diagonal to the longitudinal axis of the optical transceiver. In another embodiment, the optical transceiver provides an optical receptacle capable of turning the port thereof.
摘要:
An optical transceiver is disclosed, where the optical transceiver includes an optical subassembly (OSA) with a bottom plate for dissipating heat and connected to an electronic circuit with a flexible printed circuit (FPC). The FPC is soldered with the side electrodes of the OSA as forming a solder fillet in the plane electrode, or the FPC is soldered with the plane electrodes of the OSA as forming the solder fillet in the side electrodes, and leaving a limited room for receiving the curved FPC in peripheries of the OSA.
摘要:
An optical transceiver with an enhanced EMI shielding is disclosed. The optical transceiver of the invention provides an optical receptacle made of metal and an optical subassembly with a metal cover assembled with the optical receptacle. The metal cover electro-magnetically divides the inside from the outside of the transceiver. The metal cover provides a plate portion and an edge portion, where the former portion forms an opening through which the sleeve passes without coming in contact with the metal cover, while, the latter of which comes in contact with the receptacle.
摘要:
A bi-direction optical module with an arrangement to reduce the crosstalk noise is disclosed. The optical module comprises a laser diode (LD) driven by a differential signal and a photodiode (PD) on a single package. The PD is mounted on a position where the electrical potential measured from respective interconnections connected to the anode and to the cathode of the LD becomes the midpoint of the interconnections. The capacitances with respect the stem, where the LD and the PD are mounted thereon, viewed from the anode and the cathode of the LD becomes substantially equal to each other, or distances from the PD to respective interconnections are adjusted depending on the length of the interconnection facing the PD. Twisting the interconnections to the LD may be effective to reduce the crosstalk.
摘要:
A mechanism for the heat sink to adhere to the transceiver inserted in the cage is disclosed. The heat sink provides a guide in the side thereof, while, the cage provides a slit in the side. A pair of elastic tabs is diagonally formed in the slit. The transceiver slides the heat sink rearward as the insertion thereof into the cage, then, the guide of the heat sink slips down the rear tab in the slit, which presses the heat sink downward to adhere to the transceiver. The heat conducting path from the transceiver to the heat sink is formed.
摘要:
The present invention provides an optical transceiver with a function of the wavelength division multiplexing. The transceiver includes a receiver optical unit, a transmitter optical units and a substrate. Both optical unit includes a plurality of receiver optical subassemblies (ROSAs) or a plurality of transmitter optical subassemblies (TOSAs) and a plurality of wavelength selective filters. The ROSAs or the TOSAs in respective optical units is electrically connected with the circuit on the substrate by the flexible printed circuit (FPC) board with a plurality of branches, each connected to the ROSAs or the TOSAs, and a connecting portion fixed to the substrate.
摘要:
The optical pluggable transceiver according to the present invention has features of a good heat dissipating function with a simplified configuration thereby reducing the cost of not only the component used but also the process itself. The transceiver of the present invention comprises a resin frame, an optical subassembly, a electronic substrate, both mounted on the frame, a heat dissipating member, made of metal, for conducting and radiating heat generated by the electronic circuit on the substrate, and a metal cover for putting these frame, subassembly, substrate, and heat dissipating member therein. A greater part of the surface of the heat dissipating member exposes from the cover, accordingly, the efficiency for radiating heat may be improved. Moreover, these members of the frame, the optical subassembly, the substrate, the heat dissipating member, and the cover are assembled only by fitting without screwing or gluing. Accordingly, the manufacturing process of the transceiver can be extremely simplified.
摘要:
The pluggable optical transceiver of the present invention provides a tailed finger that comes in contact with the inner surface of the cage by pushing outward by the optical connector when the optical connector mates with the optical receptacle. While, when the optical receptacle of the transceiver is free from the optical connector, the tailed finger protrudes into the optical receptacle and no influence is affected to insert the transceiver into or to extract the transceiver from the cage.
摘要:
The present invention is to provide an intelligent pluggable transceiver improving an EMI tolerance with a simple mechanism. The optical transceiver of the invention comprises upper and lower housings (11, 12), a holder (81), optical assemblies (51, 61), a cover (14), a substrate (15) and a grip (13). The optical assemblies are fixed with the upper and lower housings together with the holder with interposing the conductive elastic member. Although the rear end of the substrate exposes outside the transceiver, the shield gasket and the ground pattern on the substrate shields the contact portion between the substrate and the upper housing and between the substrate and the cover. Moreover, the grip and the latch lever installed in the lower housing, and the elastic piece realize the latching/releasing mechanism of the transceiver with the host system.