On phase noise in optoelectronic oscillator

Abstract

International audienceThe optoelectronic microwave oscillator has large potential of application in telecommunication, space, radar systems due to its low phase noise level and high tunability. It usually consists of a pump laser, optical intensity modulator, optical delay line, photodetector, mode selection filter, and amplifier. We consider phase noise properties of different architectures of optoelectronic microwave oscillator. Influences of different components constituting the oscillator on its phase noise are shown. Results of phase noise estimation with using phase diffusion approach and results of measurements are presented