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27 April 2016 Parabolic similariton Yb-fiber laser with triangular pulse evolution
Sijia Wang, Lei Wang
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Proceedings Volume 9893, Laser Sources and Applications III; 98930V (2016) https://doi.org/10.1117/12.2227957
Event: SPIE Photonics Europe, 2016, Brussels, Belgium
Abstract
We propose a novel mode-locked fiber laser design which features a passive nonlinear triangular pulse formation and self-similar parabolic pulse amplification intra cavity. Attribute to the nonlinear reshaping progress in the passive fiber, a triangular-profiled pulse with negative-chirp is generated and paved the way for rapid and efficient self-similar parabolic evolution in a following short-length high-gain fiber. In the meanwhile, the accompanied significantly compressed narrow spectrum from this passive nonlinear reshaping also gives the promise of pulse stabilization and gain-shaping robustness without strong filtering. The resulting short average intra-cavity pulse duration, low amplified spontaneous emission (ASE) and low intra-cavity power loss are essential for the low-noise operation. Simulations predict this modelocked fiber laser allows for high-energy ultra-short transform-limited pulse generation exceeding the gain bandwidth. The output pulse has a de-chirped duration (full-width at half maximum, FWHM) of 27 fs. In addition to the ultrafast laser applications, the proposed fiber laser scheme can support low-noise parabolic and triangular pulse trains at the same time, which are also attractive in optical pulse shaping, all-optical signal processing and high-speed communication applications.
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Sijia Wang and Lei Wang "Parabolic similariton Yb-fiber laser with triangular pulse evolution", Proc. SPIE 9893, Laser Sources and Applications III, 98930V (27 April 2016); https://doi.org/10.1117/12.2227957
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KEYWORDS
Fiber lasers
Fiber lasers
Mode locking
Solids
Dispersion
Nonlinear filtering
Pulsed laser operation
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