Abstract

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 $\sim 35‐\mathrm{dB}$ suppression of the pulse-to-pulse amplitude fluctuation caused by rational-harmonic frequency doubling.

© 1999 Optical Society of America

Properties of the pulse train generated by repetition-rate-doubling rational-harmonic actively mode-locked Er-doped fiber lasers

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Arbitrary numerator rational-harmonic mode locking in fiber ring lasers

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