The University of Southampton
University of Southampton Institutional Repository

Laser operation of a low loss (0.1 dB/cm) Nd:Gd3Ga5O12 thick film (40 microns) waveguide grown by pulsed laser deposition

Laser operation of a low loss (0.1 dB/cm) Nd:Gd3Ga5O12 thick film (40 microns) waveguide grown by pulsed laser deposition
Laser operation of a low loss (0.1 dB/cm) Nd:Gd3Ga5O12 thick film (40 microns) waveguide grown by pulsed laser deposition
Pulsed laser deposition of epitaxial, single crystal Nd:Gd (YAG) substrates with thickness up to 135 µm and propagation losses as low as 0.1 dB/cm is reported. Rutherford Backscattering Spectrometry (RBS) has shown constant stoichiometry for the films throughout their depth.

A laser threshold of 18 mW of absorbed pump power has been obtained and lasing action has been observed at 1060.6 nm for pump powers close to the lasing threshold, and at both 1059.0 and 1060.6 nm at pump power levels of approximately 1.5 times above threshold. A slope efficiency of 17.5% was derived using an output couplers with a transmission of 4.5%.

The combination of low propagation losses and high numerical aperture (0.75) for the waveguides indicates the potential of the fabrication technique to produce high quality thick multi-layer waveguides. Such designs are suitable for the development of high-power diode-pumped laser sources of near-diffraction-limited beam quality.
Grivas, C.
7f564818-0ac0-4127-82a7-22e87ac35f1a
May-Smith, T.C.
47952bbd-ce28-4507-a723-b4d80bf0f809
Shepherd, D.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Grivas, C.
7f564818-0ac0-4127-82a7-22e87ac35f1a
May-Smith, T.C.
47952bbd-ce28-4507-a723-b4d80bf0f809
Shepherd, D.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020

Grivas, C., May-Smith, T.C., Shepherd, D. and Eason, R.W. (2003) Laser operation of a low loss (0.1 dB/cm) Nd:Gd3Ga5O12 thick film (40 microns) waveguide grown by pulsed laser deposition. COLA '03, Crete, Greece. 04 - 09 Oct 2003. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Pulsed laser deposition of epitaxial, single crystal Nd:Gd (YAG) substrates with thickness up to 135 µm and propagation losses as low as 0.1 dB/cm is reported. Rutherford Backscattering Spectrometry (RBS) has shown constant stoichiometry for the films throughout their depth.

A laser threshold of 18 mW of absorbed pump power has been obtained and lasing action has been observed at 1060.6 nm for pump powers close to the lasing threshold, and at both 1059.0 and 1060.6 nm at pump power levels of approximately 1.5 times above threshold. A slope efficiency of 17.5% was derived using an output couplers with a transmission of 4.5%.

The combination of low propagation losses and high numerical aperture (0.75) for the waveguides indicates the potential of the fabrication technique to produce high quality thick multi-layer waveguides. Such designs are suitable for the development of high-power diode-pumped laser sources of near-diffraction-limited beam quality.

Text
2655.pdf - Other
Download (70kB)

More information

Published date: 2003
Venue - Dates: COLA '03, Crete, Greece, 2003-10-04 - 2003-10-09

Identifiers

Local EPrints ID: 41594
URI: http://eprints.soton.ac.uk/id/eprint/41594
PURE UUID: 4553a0f6-3fe0-4c5c-8808-f02c98251be1
ORCID for D. Shepherd: ORCID iD orcid.org/0000-0002-4561-8184
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

Catalogue record

Date deposited: 05 Oct 2006
Last modified: 24 Jul 2020 01:31

Export record

Contributors

Author: C. Grivas
Author: T.C. May-Smith
Author: D. Shepherd ORCID iD
Author: R.W. Eason 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.

×