Method and system for alignment of photodetector array to optical demultiplexer outputs
US9225428B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2014 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Sep 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4256
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.