期刊
OPTICS EXPRESS
卷 19, 期 6, 页码 4902-4907出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.19.004902
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资金
- European Commission [HEALTH-F5-2008-2002880, HEALTH-F5-2008-201076]
- UK Technology Strategy Board [TP11/LLD/6/I/AF052H]
- Fianium Ltd.
We demonstrate supercontinuum generation in a photonic crystal fiber with all-normal group velocity dispersion. Pumping a short section of this fiber with compressed pulses from a compact amplified fiber laser generates a 200 nm bandwidth continuum with typical self-phase-modulation characteristics. We demonstrate that the supercontinuum is compressible to a duration of 26 fs. It therefore has a high degree of coherence between all the frequency components, and is a single pulse in the time domain. A smooth, flat spectrum spanning 800 nm is achieved using a longer piece of fiber. (C) 2011 Optical Society of America
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