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Stabilization of actively mode-locked Er-doped fiber lasers in the rational-harmonic frequency-doubling mode-locking regime

1999; Optica Publishing Group; Volume: 24; Issue: 15 Linguagem: Inglês

10.1364/ol.24.001029

1539-4794

Roman Kiyan, Olivier Deparis, O. Pottiez, Patrice Mégret, M. Blondel,

Solid State Laser Technologies

Stabilization of an actively mode-locked fiber laser in the frequency-doubling rational-harmonic mode-locking regime is demonstrated experimentally for the first time to the authors' knowledge. The stabilization is achieved by a method based on minimization of the average optical power at the second output of a dual-output Mach-Zehnder modulator used as a mode locker. This method produces long-term stable operation of the laser with ~35-dB suppression of the pulse-to-pulse amplitude fluctuation caused by rational-harmonic frequency doubling.