COAXIAL TRANSMITTER OPTICAL SUBASSEMBLY (TOSA) WITH CUBOID TYPE TO LASER PACKAGE AND OPTICAL TRANSCEIVER INCLUDING SAME

摘要

A coaxial transmitter optical subassembly (TOSA) including a cuboid type TO laser package may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. The cuboid type TO laser package is made of a thermally conductive material and has substantially flat outer surfaces that may be thermally coupled to substantially flat outer surfaces on a transceiver housing and/or on other cuboid type TO laser packages. An optical transceiver may include multiple coaxial TOSAs with the cuboid type TO laser packages stacked in the transceiver housing. The cuboid type TO laser package may thus provide improved thermal characteristics and a reduced size within the optical transceiver.

主权项

1. A coaxial transmitter optical subassembly (TOSA) comprising:
a cuboid type TO laser package including a base and at least first and second side walls extending from opposite sides of the base defining a compartment, the cuboid type TO laser package having a plurality of substantially flat outer surfaces, the cuboid type TO laser package having an optical coupling end and an electrical connecting end opposite the optical coupling end, wherein the cuboid type TO laser package is made of a thermally conductive material; and a laser submount mounted on the base and between the first and second side walls, the laser submount including conductive paths proximate the electrical connecting end for providing electrical connections; a laser diode mounted on the laser submount and electrically connected to the conductive paths; and optics mounted proximate the optical coupling end for optically coupling the laser to an optical fiber.