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Efficient design considerations for end-pumped solid-state-lasers

Efficient design considerations for end-pumped solid-state-lasers
Efficient design considerations for end-pumped solid-state-lasers
The temperature distribution in the gain medium and key design parameters for an ideal-four level end-pumped solid-state laser have been analyzed depending on the crystal's length, absorption coefficient, and pump beam M2 factor. The optimum key design parameters and thermal focal lens are obtained by minimizing the root mean square of pump beam radius in the laser crystal. It is found that the focal thermal lens and key design parameters are dependent on the gain medium characteristics and pump beam properties as well. By considering the Poisson equation in cylindrical coordinate and Top-Hat pumping profile, an analytical formula has been derived to introduce the thermal focal length in the end-pumped lasers. A formula is also presented to relate the requirements of pump source to the gain medium properties for working laser at the design point.
0030-3992
987-994
Shayeganrad, Gholamreza
8ea55a9a-4fe2-49df-a0f4-55fa81596dab
Shayeganrad, Gholamreza
8ea55a9a-4fe2-49df-a0f4-55fa81596dab

Shayeganrad, Gholamreza (2012) Efficient design considerations for end-pumped solid-state-lasers. Optics & Laser Technology, 44, 987-994. (doi:10.1016/j.optlastec.2011.10.019).

Record type: Article

Abstract

The temperature distribution in the gain medium and key design parameters for an ideal-four level end-pumped solid-state laser have been analyzed depending on the crystal's length, absorption coefficient, and pump beam M2 factor. The optimum key design parameters and thermal focal lens are obtained by minimizing the root mean square of pump beam radius in the laser crystal. It is found that the focal thermal lens and key design parameters are dependent on the gain medium characteristics and pump beam properties as well. By considering the Poisson equation in cylindrical coordinate and Top-Hat pumping profile, an analytical formula has been derived to introduce the thermal focal length in the end-pumped lasers. A formula is also presented to relate the requirements of pump source to the gain medium properties for working laser at the design point.

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More information

Accepted/In Press date: 20 October 2011
e-pub ahead of print date: 8 November 2011
Published date: 2012

Identifiers

Local EPrints ID: 479214
URI: http://eprints.soton.ac.uk/id/eprint/479214
ISSN: 0030-3992
PURE UUID: aad21370-7f44-45cf-8e96-7d1ca4a3eb78
ORCID for Gholamreza Shayeganrad: ORCID iD orcid.org/0000-0002-5225-2176

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Date deposited: 20 Jul 2023 16:45
Last modified: 17 Mar 2024 03:53

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Contributors

Author: Gholamreza Shayeganrad ORCID iD

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