Parametric Study on the Phase Noise of an Optoelectronic Oscillator Submitted to Vibrations

SummaryWe present our recent investigations on the acceleration sensitivity of an ultra-low phase noise single loop optoelectronic oscillator (OEO) operating at 10 GHz. The OEO components are successively placed on a shaker in order to quantify the sensitivity of each component. The optical fiber coil is the bottleneck, with a 10 ⁻⁸ g ⁻¹ sensitivity. The other components exhibit sensitivities lower by at least one order of magnitude. We also measured the impact of vibration on the optical intensity noise in the optical components. With these measurements, we show that vibrations affect the OEO phase noise through intensity noise degradation in the intensity modulator.