Phase noise characterization of a RF signal generation and transmission optical system based on injection locked DFB lasers

摘要

Optical generation of RF signals using correlated laser beams has potential applications for remote control and transmission of high radio-frequency local oscillator or data modulated signals over fiber. In optical heterodyne system, the phase noise of the beat note is linked to the cross-correlation between the optical phases of the beating lasers. Our experimental setting uses the FM-sideband optical injection locking method to correlate both slave lasers.