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3 October 2006 Femtosecond harmonic optical-injection mode-locked semiconductor optical amplifier based fiber lasers
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Proceedings Volume 6351, Passive Components and Fiber-based Devices III; 635106 (2006) https://doi.org/10.1117/12.685543
Event: Asia-Pacific Optical Communications, 2006, Gwangju, South Korea
Abstract
A 30nm wavelength-tunable backward dark-optical-comb injection-mode-locked semiconductor optical amplifier fiber laser (SOAFL) with pedestal-free is reported after high-order soliton compression with maximum pulse compression ratio of up to 80. Shortest mode-locked SOAFL pulsewidth of 15 ps at 1 GHz is generated, which can further be compressed to 180 fs after linear chirp compensation, nonlinear soliton compression, and birefringent filtering. The pedestal-free eighth-order soliton can be obtained by injecting the amplified pulse with peak power of 51 W into a 107.5m-long single-mode fiber (SMF), providing a linewidth and timebandwidth product of 13.8 nm and 0.31, respectively. The tolerance in SMF length is relatively large (100-300 m) for obtaining <200fs SOAFL pulsewidth at wavelength tuning range of 1530-1560 nm. By extending the repetition frequency of dark-optical-comb up to 10 GHz, the mode-locked SOAFL pulsewidth can be slightly shortened from 5.4 ps to 3.9 ps after dispersion compensating, and further to 400 fs after second-order soliton compression. The lasing linewidth, time-bandwidth product and pulsewidth suppressing ratio of the SOAFL soliton become 4.5 nm, 0.33, and 10, respectively.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yu-Sheng Liao, I-Shiang Chiu, and Gong-Ru Lin "Femtosecond harmonic optical-injection mode-locked semiconductor optical amplifier based fiber lasers", Proc. SPIE 6351, Passive Components and Fiber-based Devices III, 635106 (3 October 2006); https://doi.org/10.1117/12.685543
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