Compact multi-channel optical transceiver module

A multi-channel optical transceiver module comprising:

• a transceiver housing including a transceiver housing bottom portion and a transceiver housing top portion, the 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 circuit board located in the transceiver housing proximate the transceiver housing bottom portion, wherein the circuit board includes RF inputs located proximate the transceiver electrical connection end of the transceiver housing;
• a multi-channel transmitter optical subassembly (TOSA) located in the transceiver housing proximate the optical connection end and electrically connected to the circuit board, the TOSA being configured to transmit a wavelength division multiplexed (WDM) optical signal on multiple channel wavelengths;
• and
• a multi-channel receiver optical subassembly (ROSA) located in the transceiver housing proximate the electrical connection end and electrically connected to the circuit board, the ROSA being configured to receive a wavelength division multiplexed (WDM) optical signal on multiple channel wavelengths, wherein the ROSA is located between the circuit board and the transceiver housing top portion, and wherein the ROSA is spaced from the circuit board and inverted to transfer heat from the ROSA to the transceiver housing top portion.

An optical line terminal comprising:

• at least first and second multi-channel transceivers, each of the multi-channel transceivers 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 a 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.