A 40-GHz wavelength tunable mode-locked fiber ring laser based on cross-gain modulation in a semiconductor optical amplifier (SOA) is presented. Pulse trains with a pulse width of 10.5 ps at 40-GHz repetition frequency are obtained. The laser operates with almost 40-nm tuning range. The relationship between the key laser parameters and the output pulse characteristics is analyzed experimentally.
© 2008 Chinese Optics Letters
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3520) Lasers and laser optics : Lasers, injection-locked
(140.3560) Lasers and laser optics : Lasers, ring
(140.3600) Lasers and laser optics : Lasers, tunable
(140.4050) Lasers and laser optics : Mode-locked lasers
Shuangyi Yan, Jianguo Zhang, and Wei Zhao, "40-GHz wavelength tunable mode-locked SOA-based fiber laser with 40-nm tuning range," Chin. Opt. Lett. 6, 676-678 (2008)