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Performance of a low loss pulsed laser deposited Nd:Gd3Ga5O12 waveguide laser at 1.06µm and 0.94µm

Bonner, C.L., Anderson, A.A., Eason, R.W., Shepherd, D.P., Gill, D.S., Grivas, C. and Vainos, N.A. (1997) Performance of a low loss pulsed laser deposited Nd:Gd3Ga5O12 waveguide laser at 1.06µm and 0.94µm Optics Letters, 22, (13), pp. 988-990.

Record type: Article

Abstract

We report the laser performance of a low propagation loss neodymium doped Gd3Ga5O12 (Nd:GGG) waveguide fabricated by pulsed laser deposition. An 8µm thick crystalline Nd:GGG film grown on an undoped Y3Al5O12 (YAG) substrate lases at 1.060µm and 1.062µm, when pumped by a Ti:sapphire laser operating at 740nm or 808nm. Using a 2.2% output coupler a 1060nm laser threshold of 4mW and a slope efficiency of 20% were observed. Laser action has also been achieved, we believe for the first time in Nd:GGG, on the quasi-three level 937nm transition. With a 2% output coupler at this wavelength a laser threshold of 17mW and a 20% slope efficiency were obtained. This demonstration of low propagation loss combined with the fact that these waveguides have a very high numerical aperture, make pulsed laser deposited thin films attractive for high power diode pumped devices.

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Published date: 1997

Identifiers

Local EPrints ID: 78003
URI: http://eprints.soton.ac.uk/id/eprint/78003
ISSN: 0146-9592
PURE UUID: 0a12af9c-16fd-4bfb-a0af-4628aa671156
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204
ORCID for D.P. Shepherd: ORCID iD orcid.org/0000-0002-4561-8184

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Date deposited: 11 Mar 2010
Last modified: 11 Oct 2017 13:27

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Contributors

Author: C.L. Bonner
Author: A.A. Anderson
Author: R.W. Eason ORCID iD
Author: D.P. Shepherd ORCID iD
Author: D.S. Gill
Author: C. Grivas
Author: N.A. Vainos

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