Method and system for alignment of photodetector array to optical demultiplexer outputs

摘要

A system is provided for aligning a photodetector array to optical outputs of an optical demultiplexer in a multi-channel receiver optical subassembly (ROSA). In one embodiment, the system may include a clamp alignment fixture configured to secure a position of a photodetector mounting bar within a ROSA housing, wherein the photodetector array is disposed on the photodetector mounting bar and the photodetector array includes a plurality of photodiodes. The system may further include a motion staging device configured to adjust an orientation of the photodetector mounting bar by varying an angle of the clamp alignment fixture. The adjustment may be based on observation of the location of an optical alignment signal relative to the plurality of photodiodes, the optical alignment signal projected onto the photodetector mounting bar by the optical demultiplexer.

主权项

1. A system for aligning a photodetector array to optical outputs of an optical demultiplexer in a multi-channel receiver optical subassembly (ROSA), said system comprising:
a clamp alignment fixture configured to secure a position of a photodetector mounting bar within a ROSA housing, wherein said photodetector array is disposed on said photodetector mounting bar and said photodetector array comprises a plurality of photodiodes; and a motion staging device configured to adjust an orientation of said photodetector mounting bar by varying an angle of said clamp alignment fixture, said adjustment based on observation of the location of an optical alignment signal relative to said plurality of photodiodes, said optical alignment signal projected onto said photodetector mounting bar by said optical demultiplexer.