Fourier Domain Mode Locking Optoelectronic Oscillator for VCO-output Signal Optimization

A Fourier domain mode locking (FDML) optoelectronic oscillator (OEO) based on stimulated Brillouin scattering is demonstrated to optimize the signal performance from a voltage controlled oscillator (VCO). Experimental results indicate that the signal from the FDML OEO has a much lower phase noise and a better coherence than the signal output from the VCO.