Monolithic Mode Locked Laser-Based Optical Frequency Comb for OFDM Integrated on InP Generic Technology Platform

We present different types of optical frequency comb structures based on mode-locked lasers, fabricated on generic platform, as high coherence sources for OFDM. The optical signal does not require cleaved facets, which enables the use of integrated optical multiplexers/demultiplexers to modulate each wavelength separately on the same chip. In addition, the presented comb structures feature wide spectral bandwidth and mode spacing selectability.