Compact optical transceivers

An optical transceiver module comprising:

• a transceiver substrate, the transceiver substrate having a front surface and a rear surface and a top edge and bottom edge;
• an electrical connector positioned proximate the bottom edge of the transceiver substrate;
• a receive optical assembly positioned proximate the top edge of the transceiver substrate;
• and
• a transmit optical sub-assembly positioned proximate the top edge of the transceiver substrate.

A host bus adaptor comprising;

• a printed circuit board having at least one connector configured to electrically interface with a computer system;
• and
• an optical transceiver module positioned on the printed circuit board, the optical transceiver comprising:
• a transceiver substrate including electronic circuitry, the transceiver substrate having a front surface and a rear surface and top and bottom edges;
• an electrical connector positioned proximate the bottom edge of the transceiver substrate;
• a receive optical sub-assembly positioned proximate the top edge of the transceiver substrate;
• and
• a transmit optical sub-assembly positioned to the right of the receive optical sub-assembly and proximate the top edge of the transceiver substrate, and the transmit optical sub-assembly and receive optical sub-assembly being in electrical communication with the electronic circuitry of the transceiver substrate.