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A power scaling strategy for longitudinally diode-pumped Tm:YLF lasers

A power scaling strategy for longitudinally diode-pumped Tm:YLF lasers
A power scaling strategy for longitudinally diode-pumped Tm:YLF lasers
We describe a power scaling strategy for longitudinally diode-pumped Tm:YLF lasers based on optimisation of the thulium doping level and the gain geometry. Carefully designed laser experiments at lower powers are shown to allow a simple means for accurately predicting the thermal loading and hence the power scaling properties of this system, including the effects of ground-state depletion, cross-relaxation and energy transfer upconversion. An optimised doping level of 2at.% and a slab geometry are shown experimentally to allow scaling of a single gain unit to output powers of ~70W, limited by the available pump power, and a strategy for scaling well beyond 100W output is discussed.
0946-2171
389-393
So, S.
160ee139-f4ca-45a4-8ed9-a24c9d7b3f9b
Mackenzie, J.I.
1d82c826-fdbf-425b-ac04-be43ccf12008
Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Betterton, J.G.
193a9ea2-2995-446a-a466-4940b8df0dc7
Gorton, E.K.
10e28962-c35c-4350-bb77-4a05c53a2444
So, S.
160ee139-f4ca-45a4-8ed9-a24c9d7b3f9b
Mackenzie, J.I.
1d82c826-fdbf-425b-ac04-be43ccf12008
Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Betterton, J.G.
193a9ea2-2995-446a-a466-4940b8df0dc7
Gorton, E.K.
10e28962-c35c-4350-bb77-4a05c53a2444

So, S., Mackenzie, J.I., Shepherd, D.P., Clarkson, W.A., Betterton, J.G. and Gorton, E.K. (2006) A power scaling strategy for longitudinally diode-pumped Tm:YLF lasers. Applied Physics B, 84 (3), 389-393. (doi:10.1007/s00340-006-2286-y).

Record type: Article

Abstract

We describe a power scaling strategy for longitudinally diode-pumped Tm:YLF lasers based on optimisation of the thulium doping level and the gain geometry. Carefully designed laser experiments at lower powers are shown to allow a simple means for accurately predicting the thermal loading and hence the power scaling properties of this system, including the effects of ground-state depletion, cross-relaxation and energy transfer upconversion. An optimised doping level of 2at.% and a slab geometry are shown experimentally to allow scaling of a single gain unit to output powers of ~70W, limited by the available pump power, and a strategy for scaling well beyond 100W output is discussed.

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Published date: 2006

Identifiers

Local EPrints ID: 41165
URI: https://eprints.soton.ac.uk/id/eprint/41165
ISSN: 0946-2171
PURE UUID: 3bf5c587-3527-4eea-8416-60fb3f4405d4
ORCID for J.I. Mackenzie: ORCID iD orcid.org/0000-0002-3355-6051
ORCID for D.P. Shepherd: ORCID iD orcid.org/0000-0002-4561-8184

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Date deposited: 26 Jul 2006
Last modified: 03 Dec 2019 02:05

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Contributors

Author: S. So
Author: J.I. Mackenzie ORCID iD
Author: D.P. Shepherd ORCID iD
Author: W.A. Clarkson
Author: J.G. Betterton
Author: E.K. Gorton

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