The University of Southampton
University of Southampton Institutional Repository

Towards a compact optical waveguide device for active infrared applications

Record type: Conference or Workshop Item (Paper)

The infrared (IR) spectrum is of significant importance in many defence applications including free-space communication, thermal imaging and chemical sensing. The materials used in these applications must exhibit a number of suitable properties including mid-IR transparency, rare-earth solubility and low optical loss. When moving towards miniaturised optical devices one tends to adopt the concepts introduced by integrated optics; multiple devices operating harmoniously on a single photonic chip. Our work focuses on the use of a laser to directly write into a novel chalcogenide glass to engineer optical waveguide devices. Our material of choice is gallium lanthanum sulphide (Ga:La:S) glass, an exceptional vitreous chalcogenide material possessing these aforementioned properties as well as a broad range of other properties. These Ga:La:S glasses have a wide transmission window between 0.5 to 10 µm. Furthermore, these low-phonon energy glasses have a high transition temperature (T = 560°C), high refractive index, the highest reported non-linearity in a glass, excellent me-earth solubility with well documented near-mid IR spectroscopic properties. We report on low loss single-mode active channel waveguides in Ga:La:S glass engineered through direct laser writing (lambda = 244 nm). We discuss laser operation at 1.075 µm (neodymium) and IR emission at 1.55, 2.02 and 2.74 µm (erbium) from these waveguides.

Full text not available from this repository.

Citation

Mairaj, Arshad, Curry, Richard J., Hughes, Mark, Simpson, Robert, Knight, Kenton and Hewak, Dan (2004) Towards a compact optical waveguide device for active infrared applications At SPIE European Symposium on Optics and Photonics for Defence & Security, London, United Kingdom. 25 - 28 Oct 2004.

More information

e-pub ahead of print date: 2004
Venue - Dates: SPIE European Symposium on Optics and Photonics for Defence & Security, London, United Kingdom, 2004-10-25 - 2004-10-28
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 41716
URI: http://eprints.soton.ac.uk/id/eprint/41716
PURE UUID: edcaf55a-b837-4980-9344-c6d93f3b46b0
ORCID for Dan Hewak: ORCID iD orcid.org/0000-0002-2093-5773

Catalogue record

Date deposited: 16 Oct 2006
Last modified: 17 Jul 2017 15:28

Export record

Contributors

Author: Arshad Mairaj
Author: Richard J. Curry
Author: Mark Hughes
Author: Robert Simpson
Author: Kenton Knight
Author: Dan 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.

×