期刊
OPTICS EXPRESS
卷 16, 期 4, 页码 2381-2386出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.16.002381
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- Engineering and Physical Sciences Research Council [EP/D058074/1] Funding Source: researchfish
We report a high power tunable femtosecond soliton-based source using a simple combination of fiber-amplified pulses at 1064nm and hollow-core photonic bandgap fiber. Compression of 5.5ps input pulses, strongly chirped by self phase modulation in the amplifier, results in stable 520fs-soliton formation with 77% conversion efficiency after only 8m propagation in the hollow-core fiber. The Raman self-frequency shift of the solitons was used to provide 33nm wavelength tuneability. The transform-limited output pulses were frequency doubled using a nonlinear crystal with high conversion efficiency of 60% to demonstrate a femtosecond green laser tunable from 534nm to 548nm with 180nJ pulse energy. (C) 2008 Optical Society of America.
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