Abstract

By employing the technique of asynchronous mode locking, we have successfully demonstrated direct generation of stable $10\mathrm{GHz}$ $816\mathrm{fs}$ pulse trains with a supermode-suppression ratio $>70\mathrm{dB}$ from a hybrid mode-locked Er-fiber laser. When the modulation frequency deviates from the cavity harmonic frequency by $15–40\mathrm{kHz}$, stable femtosecond soliton pulses are formed. Our results demonstrate that asynchronous mode locking can act as an effective mechanism for achieving a shorter pulse width and for stabilizing high-repetition-rate pulse trains in soliton fiber lasers.

© 2005 Optical Society of America

Long-term stabilization of a 10 GHz 0.8 ps asynchronously mode-locked Er-fiber soliton laser by deviation-frequency locking

Wei-Wei Hsiang, Chien-Yu Lin, Ng Kam Sooi, and Yinchieh Lai
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40-GHz, 100-fs stimulated-Brillouin-scattering-free pulse generation by combining a mode-locked laser diode and a dispersion-decreasing fiber

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