Optomechanical Microwave Oscillator and Frequency Comb- NTC

Abstract

This OPA technical note introduces an optomechanical microwave oscillator on a photonic integrated silicon chip. The device allows obtaining a microwave tone at about 4 GHz with a phase noise lower than -100 dBc/Hz at 100 kHz. In addition, this optomechanical oscillator, developed at the Valencia Nanophotonic Technology Center (NTC), can generate an optical comb with high purity harmonics reaching above 20 GHz..