Patent ID: 9709760
Date: 2017-07-18
CPC Classifications: G02B,H01L,H04B,H05K,Y10T

Claim:
1. An optical subassembly comprising: a flex circuit that includes a printed circuit board (PCB) flex connection and a flex connection, wherein the PCB flex connection is included on a first portion of the flex circuit that is opposite a second portion of the flex circuit that includes the flex connection; an optical port that defines a fiber receiver and a barrel cavity, the optical port being mechanically coupled to the flex circuit at the flex connection on a first surface of the flex circuit; an active optical subassembly positioned within the barrel cavity and located on the first surface of the flex circuit, wherein the active optical subassembly includes at least one active optical component that is mechanically coupled directly to the flex circuit and is aligned relative to the fiber receiver; and a heat sink stiffener located on a second surface of the flex circuit opposite the active optical component subassembly and located on the second portion of the flex circuit, the heat sink stiffener being configured to stiffen the second portion of the flex circuit and act as a thermal sink for at least a portion of heat generated during operation of the active optical subassembly, wherein the first portion including the PCB flex connection is unsupported by the heat sink stiffener and is configured to communicate electrical signals between a host system and the active optical subassembly.