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Proceedings Paper

Femtosecond harmonic optical-injection mode-locked semiconductor optical amplifier based fiber lasers
Author(s): Yu-Sheng Liao; I-Shiang Chiu; Gong-Ru Lin
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Paper 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.

Paper Details

Date Published: 3 October 2006
PDF: 9 pages
Proc. SPIE 6351, Passive Components and Fiber-based Devices III, 635106 (3 October 2006); doi: 10.1117/12.685543
Show Author Affiliations
Yu-Sheng Liao, National Chiao Tung Univ. (Taiwan)
I-Shiang Chiu, National Chiao Tung Univ. (Taiwan)
Gong-Ru Lin, National Taiwan Univ. (Taiwan)


Published in SPIE Proceedings Vol. 6351:
Passive Components and Fiber-based Devices III
Sang Bae Lee; Yan Sun; Kun Qiu; Simon C. Fleming; Ian H. White, Editor(s)

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