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Spectrally smooth supercontinuum from 350 nm to 3 mu m in sub-centimeter lengths of soft-glass photonic crystal fibers.

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Joly,  NY
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

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Russell,  PSJ
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Omenetto, F., Wolchover, N., Wehner, M., Ross, M., Efimov, A., Taylor, A., et al. (2006). Spectrally smooth supercontinuum from 350 nm to 3 mu m in sub-centimeter lengths of soft-glass photonic crystal fibers. OPTICS EXPRESS, 14(11), 4928-4934. doi:10.1364/OE.14.004928.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-6D9A-7
Abstract
The conversion of light fields in photonic crystal fibers ( PCFs) capitalizes on the dramatic enhancement of several optical nonlinearities. We present here spectrally smooth, highly broadband supercontinuum radiation in a short piece of high-nonlinearity soft-glass PCF. This supercontinuum spans several optical octaves, with a spectral range extending from 350 nm to beyond 3000 nm. The selection of an appropriate propagation-length determines the spectral quality of the supercontinuum generated. Experimentally, we clearly identify two regimes of nonlinear pulse transformation: when the fiber length is much shorter than the dispersion length, soliton propagation is not important and a symmetric supercontinuum spectrum arises from almost pure self-phase modulation. For longer fiber lengths the supercontinuum is formed by the breakup of multiple Raman-shifting solitons. In both regions very broad supercontinuum radiation is produced. (c) 2006 Optical Society of America.