METHOD AND APPARATUS FOR ALL-OPTICAL DISCRETE FOURIER TRANSFORM INCLUDING ALL-OPTICAL OFDM DEMULTIPLEXING

摘要

Various exemplary embodiments relate to an optical discrete Fourier transform device including: a IxN splitter; N optical delay lines each with an optical phase shifter, wherein the N optical delay lines are coupled to the IxN MMI device; and an NxN MMI device coupled to the N optical delay lines, wherein the NxN MMI device produces N optical outputs.