Sequential generation of 10-wavelength picosecond pulses from a semiconductor laser using sub-harmonic pulse-gating in a dispersion-balanced external cavity

We have demonstrated the generation of multi-wavelength channel single-mode pulses from a FP laser diode. The laser diode is sequentially self-seeded by 10 wavelength components with a repetition frequency of 7.42 GHz. The successful implementation of this scheme indicates the potential to generate a multi-wavelength output beyond 10 GHz, which would be useful in photonic ADCs and WDM communications.