A 5 Gb/s, 2 channel bi-directional adaptive redundant FSOI demonstrator system

摘要

A novel board-to-board free space optical interconnect which operates on the principle of redundancy is described. STolerance to misalignment is achieved through the use of two-dimensional arrays of lasers and detectors together with an adaptive alignment algorithm based on redundant transceivers and a defocused optical interconnect. In this system four 1.25 GSb/s data channels are supported by transmittier modules and receiver mdoules (2 per board) which contain 3x3 VCSEl and 3x3 photodiode arrays, respoectively. The system was designed to have lateral misalignment tolerance of +- 1 mm and angular tolerance of +- 1 deg.