Fig. 1. Schematic diagram of MRR-based AML-OEO structure

Fig. 2. MRR used in the experiment. (a) Microscope image; (b) spectral response, illustration is amplification for nearing 1150.0 nm wavelength

Fig. 3. Frequency response of the bandpass MPF

Fig. 4. Spectral response of traditional OEO. (a) Spectrum in bandwidth range of 900 MHz; (b) spectrum in bandwidth range of 90 MHz

Fig. 5. Signal spectral response under fundamental frequency mode-locking. (a) Spectrum in bandwidth range of 750 MHz; (b) spectrum in bandwidth range of 80 MHz

Fig. 6. Signal spectral response under harmonic mode-locking. (a) Signal spectrum generated by 5th-order mode-locked and (b) corresponding drawing of partial enlargement; (c) signal spectrum generated by 10th-order mode-locked and (d) corresponding drawing of partial enlargement

Fig. 7. Phase noise of different mode-locked signals