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UV generation in a pure-silica holey fiber

UV generation in a pure-silica holey fiber
UV generation in a pure-silica holey fiber
We report supercontinuum generation extending to 300nm in the UV from a pure-silica holey fiber. The broad spectrum was obtained by launching ultra-short pulses (~150fs, 10nJ at 820nm) 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 360nm. 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.
0946-2171
291-298
Price, J.H.V.
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Monro, T.M.
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Furusawa, K.
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Belardi, W.
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Baggett, J.C.
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Coyle, S.
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Netti, C.
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Baumberg, J.J.
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Paschotta, R.
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Richardson, D.J.
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Price, J.H.V.
fddcce17-291b-4d01-bd38-8fb0453abdc8
Monro, T.M.
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Furusawa, K.
f84c2a9c-89d8-41a1-9d7a-b196fc4ed60c
Belardi, W.
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Baggett, J.C.
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Coyle, S.
fea55080-7d4c-4df2-a0fa-ef0012cf36ee
Netti, C.
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Baumberg, J.J.
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Paschotta, R.
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Richardson, D.J.
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Price, J.H.V., Monro, T.M., Furusawa, K., Belardi, W., Baggett, J.C., Coyle, S., Netti, C., Baumberg, J.J., Paschotta, R. and Richardson, D.J. (2003) UV generation in a pure-silica holey fiber. Applied Physics B, 77 (2-3), 291-298. (doi:10.1007/s00340-003-1174-y).

Record type: Article

Abstract

We report supercontinuum generation extending to 300nm in the UV from a pure-silica holey fiber. The broad spectrum was obtained by launching ultra-short pulses (~150fs, 10nJ at 820nm) 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 360nm. 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.

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Published date: 16 July 2003

Identifiers

Local EPrints ID: 14052
URI: https://eprints.soton.ac.uk/id/eprint/14052
ISSN: 0946-2171
PURE UUID: 9394a10b-5ff5-4a64-9981-5165cc5c4d14
ORCID for J.H.V. Price: ORCID iD orcid.org/0000-0003-0256-9172
ORCID for D.J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

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Date deposited: 02 Feb 2005
Last modified: 03 Dec 2019 02:05

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Contributors

Author: J.H.V. Price ORCID iD
Author: T.M. Monro
Author: K. Furusawa
Author: W. Belardi
Author: J.C. Baggett
Author: S. Coyle
Author: C. Netti
Author: J.J. Baumberg
Author: R. Paschotta
Author: D.J. Richardson ORCID iD

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