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DOE OSTI · 22395689

Divided-pulse nonlinear amplification and simultaneous compression

Hao, Qiang·Zhang, Qingshan·Sun, Tingting·Chen, Jie·Wang, Yuqing·Guo, Zhengru·Yang, Kangwen·Guo, Zhanhua·Zeng, Heping
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Abstract

We report on a fiber laser system delivering 122 fs pulse duration and 600 mW average power at 1560 nm by the interplay between divided pulse amplification and nonlinear pulse compression. A small-core double-clad erbium-doped fiber with anomalous dispersion carries out the pulse amplification and simultaneously compresses the laser pulses such that a separate compressor is no longer necessary. A numeric simulation reveals the existence of an optimum fiber length for producing transform-limited pulses. Furthermore, frequency doubling to 780 nm with 240 mW average power and 98 fs pulse duration is achieved by using a periodically poled lithium niobate crystal at room temperature.

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75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITYAMPLIFICATIONCOMPRESSIONCOMPRESSORSCRYSTALSDOPED MATERIALSERBIUM COMPOUNDSLASER RADIATIONLITHIUM COMPOUNDSNIOBATESNONLINEAR PROBLEMSPERIODICITYTEMPERATURE RANGE 0273-0400 K

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Hao, Qiang, Zhang, Qingshan, Sun, Tingting, Chen, Jie, Wang, Yuqing, Guo, Zhengru, Yang, Kangwen, Guo, Zhanhua, Zeng, Heping. 2015-03-09. Divided-pulse nonlinear amplification and simultaneous compression. https://doi.org/10.1063/1.4914882

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