Method for generating high repetition frequency optical frequency comb

The invention discloses a method for generating a high repetition frequency optical frequency comb. The technical scheme includes that the method comprises that the repetition frequency of laser output pulse is N times of the base repetition frequency of the cavity length through an active harmonic lock die which can achieve the repetition frequency lock and is arranged on a laser, the optical power amplification is conducted to seed pulse through multi-stage cascade amplification, a carrier wave envelope phase zero frequency self-reference interferometer measures carrier wave envelope phase zero frequency signals in the harmonic lock die pulse, a carrier wave envelope phase noise feedforword control locks the zero frequency shake of the harmonic pulse, and the high repetition frequency optical frequency comb can be obtained. The defect of the prior art is overcome and the restriction of the cavity length of the laser is removed.