Compact multi-channel optical transceiver module

摘要

A compact multi-channel optical may include a multi-channel transmitter optical subassembly (TOSA), a multi-channel receiver optical subassembly (ROSA) and a circuit board configured and arranged to fit within a relatively small space. The multi-channel ROSA is spaced from the circuit board to allow circuit components to be mounted between the circuit board and the ROSA. The multi-channel ROSA may also be inverted and mounted proximate a transceiver top housing portion, for example, using an L-shaped ROSA support, to transfer heat from the ROSA to the transceiver housing portion. The optical transceiver may be used in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

主权项

1. A multi-channel optical transceiver module comprising:
a transceiver housing having a transceiver optical connection end and a transceiver electrical connection end, the transceiver optical connection end of the transceiver housing being configured to provide an optical connection and the transceiver electrical connection end of the transceiver housing being configured to provide an electrical connection; a multi-channel transmitter optical subassembly (TOSA) located in the transceiver housing proximate the optical connection end, the TOSA being configured to transmit a wavelength division multiplexed (WDM) optical signal on multiple channel wavelengths; a multi-channel receiver optical subassembly (ROSA) located in the transceiver housing proximate the electrical connection end, the ROSA being configured to receive a wavelength division multiplexed (WDM) optical signal on multiple channel wavelengths; and a circuit board located in the transceiver housing and electrically connected to the TOSA and to the ROSA, wherein the ROSA is spaced from the circuit board, and wherein the circuit board includes RF inputs located proximate the transceiver electrical connection end of the transceiver housing and at least a first plurality of integrated circuit (IC) components located between the circuit board and the ROSA, the IC components being electrically connected to the TOSA and the ROSA.