Optical link for an adatpive redundant free space interconect

摘要

Board to board free-space optical interconnects can deliver high bandwidth with no physical contact but suffer from poor tolerances to misalignment. In order to obtain high misalighnment tolerances, we propose the use of an active alignment scheme in conjunction with an optimized optical design. The active alignment scheme uses a redundant set of optical links and the active selection of the best link. The optical design maximizes the alignment tolerances between the two boards.