Optical comb frequencies stabilization and super mode noise suppression of harmonically modelocked semiconductor ring laser using a single etalon

Using an intracavity Pound-Drever-Hall technique, simultaneous optical frequency comb stabilization within /spl plusmn/3 MHz range and supermode phase noise suppression were demonstrated for a 10 GHz harmonically modelocked semiconductor ring laser resulting in timing jitter of 63.5 fs integrated from 10 Hz to 10 MHz.