We have succeeded in the simultaneous stabilization of the optical frequency and repetition rate of a regeneratively mode-locked picosecond erbium-doped fiber ring laser. The optical frequency was locked to the molecular absorption of C2H2 in the 1.5 μm band, and the repetition rate was stabilized to a 40 GHz synthesizer by using a microwave phase-locked loop. The optical frequency stability of the pulse train reached 2 × 10-11 for τ=10-100 s. The key to success is the independent control of the repetition rate without disturbing the optical cavity condition.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics