Printed circuit board assembly (PCBA) with integrated mounting structure to align and couple to transmitter optical assembly (TOSA) modules

An optical transceiver, the optical transceiver comprising:

• a housing defining a cavity for receiving an optical transceiver module;
• and
• an optical transceiver module disposed at least partially within the cavity of the housing, the optical transceiver module comprising:
• a substrate having a first end that extends to a second end, the substrate having at least a first mounting surface;
• a plurality of mating grooves defined by the first end of the substrate for coupling to laser assemblies;
• and
• a plurality of laser assemblies, each of the plurality of laser assemblies comprising:
• a base that provides at least a first surface for mounting a laser arrangement and a male coupling section, the male coupling section defined by at least a first mating surface that extends substantially transverse relative to the first mounting surface and is shaped to generally correspond with a mating groove of the plurality of mating grooves.