VARIABLE SPECTRAL PHASE ENCODER/DECODER BASED ON DECOMPOSITION OF HADAMARD CODES

摘要

The invention is directed toward a variable spectral phase encoder. The v ariable spectral phase encoder includes a plurality of switches and at least one encoder. The encoder is coupled between a first switch and second switc h among the plurality of switches. The first switch selectively routes an op tical signal to some combination of fixed encoders such that their collectiv e product applies one of the Hadamard sequences to the optical signal.