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https://hdl.handle.net/2440/37495
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Type: | Journal article |
Title: | UV generation in a pure silica holey fiber |
Author: | Price, J. Monro, T. Furusawa, K. Belardi, W. Baggett, J. Coyle, S. Netti, C. Baumberg, J. Paschotta, R. Richardson, D. |
Citation: | Applied Physics B: Lasers and Optics, 2003; 77(2-3):291-298 |
Publisher: | Springer |
Issue Date: | 2003 |
ISSN: | 0946-2171 1432-0649 |
Statement of Responsibility: | J.H.V. Price, T.M. Monro, K. Furusawa, W. Belardi, J.C. Baggett, S. Coyle, C. Netti, J.J. Baumberg, R. Paschotta and D.J. Richardson |
Abstract: | We report supercontinuum generation extending to 300 nm in the UV from a pure-silica holey fiber. The broad spectrum was obtained by launching ultra-short pulses (150 fs, 10 nJ at 820 nm) from an amplified Ti:sapphire laser. The extension of holey-fiber-based supercontinuum generation into the UV should prove to be of immediate application in spectroscopy. By slightly detuning the launch conditions we excited a higher order spatial mode, which produced a narrower supercontinuum, but with enhanced conversion efficiency at a series of blue/UV peaks around 360 nm. We present numerical simulations, which suggest that differences in the dispersion profiles between the modes are an important factor in explaining this enhancement. In a related experiment, using the same laser source and fiber, we demonstrate a visible supercontinuum from several subsidiary cores, with distinct colours in each core. The subsidiary cores were excited by an appropriate input coupling. Fabrication of a fiber with a range of core sizes (dispersion profiles) for tailored supercontinuum generation can therefore be envisaged for practical applications. |
Description: | The original publication can be found at www.springerlink.com |
DOI: | 10.1007/s00340-003-1174-y |
Published version: | http://www.springerlink.com/content/q92dpafwa5xed9fk/?p=03fa1c89121642d888519e1bea4e0c89&pi=20 |
Appears in Collections: | Aurora harvest Physics publications |
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