Fig. 1. Frequency stabilization method of homologous asynchronous fiber optical comb. (a) Diagram of optical frequency comb; (b) sidebands generated by electro-optical modulation of a CW laser; (c) experimental scheme

Fig. 2. Experimental results. (a) Spectrum of electro-optical modulated light source; (b) output spectra of fiber combs

Fig. 3. Beat frequency measurement results of dual-comb locked in traditional way. (a) Frequency resolution of 10 kHz; (b) frequency resolution of 1 kHz.

Fig. 4. Homologous frequency stabilized dual-comb beat frequency measurement results. (a) Dual-comb spectrum after homologous locking; (b) partial enlarged view; (c) single beat frequency comb line