Highly efficient cryogenically cooled Yb: YAG laser
Highly efficient cryogenically cooled Yb: YAG laser
A MOPA laser system for high pulse energy and high average power has been developed by using a cryogenic Yb:YAG. In the regenerative amplifier with our original TRAM architecture, the high pulse energies of 6.5 and 1.5 mJ were obtained at the repetition rate of 200 Hz and 1 kHz, respectively. An optical efficiency was as high as ?o-o = 9.3% with an excellent beam quality of M 2 < 1.1, which ensured that a cryogenic Yb:YAG TRAM had a high thermal strength. The following four pass power amplifier with a cryogenic Yb:YAG rod showed 140 mJ at 100 Hz. Both a high optical efficiency of ?o-o = 30% and a high slope efficiency of ?s = 44% showed that an efficient laser operation could be realized for a power amplification with both a high pulse energy and a high average power by using a cryogenic Yb:YAG.
1079-1084
Kawanaka, J.
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Takeuchi, Y.
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Yoshida, A.
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Pearce, Stuart
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Yasuhara, R.
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Kawashima, T.
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Kan, H.
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May 2010
Kawanaka, J.
befe747a-70e7-453e-be2d-cb6ff6a6c39a
Takeuchi, Y.
4aea60ab-7aa5-47ae-80eb-baf87fe55a3b
Yoshida, A.
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Pearce, Stuart
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Yasuhara, R.
cb8026e7-58f0-464c-94e9-b5b9bb312339
Kawashima, T.
2f7dfa72-9b3e-4b3d-8dc7-12cdfad05cfd
Kan, H.
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Kawanaka, J., Takeuchi, Y., Yoshida, A., Pearce, Stuart, Yasuhara, R., Kawashima, T. and Kan, H.
(2010)
Highly efficient cryogenically cooled Yb: YAG laser.
Laser Physics, 20 (5), .
(doi:10.1134/S1054660X10090252).
Abstract
A MOPA laser system for high pulse energy and high average power has been developed by using a cryogenic Yb:YAG. In the regenerative amplifier with our original TRAM architecture, the high pulse energies of 6.5 and 1.5 mJ were obtained at the repetition rate of 200 Hz and 1 kHz, respectively. An optical efficiency was as high as ?o-o = 9.3% with an excellent beam quality of M 2 < 1.1, which ensured that a cryogenic Yb:YAG TRAM had a high thermal strength. The following four pass power amplifier with a cryogenic Yb:YAG rod showed 140 mJ at 100 Hz. Both a high optical efficiency of ?o-o = 30% and a high slope efficiency of ?s = 44% showed that an efficient laser operation could be realized for a power amplification with both a high pulse energy and a high average power by using a cryogenic Yb:YAG.
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e-pub ahead of print date: 2 April 2010
Published date: May 2010
Organisations:
Nanoelectronics and Nanotechnology
Identifiers
Local EPrints ID: 350322
URI: http://eprints.soton.ac.uk/id/eprint/350322
ISSN: 1054-660X
PURE UUID: 41631632-2c43-4d5e-a077-19510d478638
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Date deposited: 25 Mar 2013 13:19
Last modified: 14 Mar 2024 13:24
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Contributors
Author:
J. Kawanaka
Author:
Y. Takeuchi
Author:
A. Yoshida
Author:
Stuart Pearce
Author:
R. Yasuhara
Author:
T. Kawashima
Author:
H. Kan
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