Patent ID: 9614620
Date: 2017-04-04
CPC Classifications: G02B,H04B,H04J

Claim:
1. A coaxial transmitter optical subassembly (TOSA) comprising: a cuboid type TO laser package including a base and at least a 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, wherein the cuboid type TO laser package further includes an end wall extending from the base at the optical coupling end, the end wall including an aperture configured to allow laser light to pass through, and wherein the electrical connecting end is open; and a laser submount mounted directly on the base and in the compartment 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 in alignment with the aperture in the end wall and electrically connected to the conductive paths; and optics mounted proximate the optical coupling end in alignment with the aperture in the end wall for optically coupling the laser to an optical fiber.