The University of Southampton
University of Southampton Institutional Repository

Spectral broadening in femtosecond laser written waveguides in chalcogenide glass

Record type: Article

Nonlinear spectral broadening to 200 nm, from an initial width of 50 nm, has been demonstrated in gallium lanthanum sulphide glass waveguides from 1540 nm, 200 fs pulses at 30 nJ/pulse. A formation mechanism is presented for these femtosecond laser written waveguides, based on optical characterization and comparisons to previous work. Two different types of waveguide are identified. One has a characteristic long narrow structure and is formed through filamentation caused by self-focusing. The other has a characteristic "teardrop" structure, which is formed by a type IIA photosensitivity mechanism and cumulative heating of glass around a central laser-exposed region.

Full text not available from this repository.

Citation

Hughes, Mark A., Yang, Weijia and Hewak, D.W. (2009) Spectral broadening in femtosecond laser written waveguides in chalcogenide glass Journal of the Optical Society of America B, 26, (7), pp. 1370-1378. (doi:10.1364/JOSAB.26.001370).

More information

Published date: 1 July 2009

Identifiers

Local EPrints ID: 163423
URI: http://eprints.soton.ac.uk/id/eprint/163423
ISSN: 0740-3224
PURE UUID: 7a0ac5cd-9879-4c40-b1d4-e3dddcdad54e
ORCID for D.W. Hewak: ORCID iD orcid.org/0000-0002-2093-5773

Catalogue record

Date deposited: 08 Sep 2010 12:56
Last modified: 18 Jul 2017 12:31

Export record

Altmetrics

Contributors

Author: Mark A. Hughes
Author: Weijia Yang
Author: D.W. Hewak ORCID iD

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×