Efficient generation of 200mJ nanosecond pulses at a 100Hz repetition rate from a cryogenic cooled Yb:YAG MOPA system
Efficient generation of 200mJ nanosecond pulses at a 100Hz repetition rate from a cryogenic cooled Yb:YAG MOPA system
A diode-pumped Master Oscillator Power Amplifier (MOPA) laser system based on cryogenic cooled Yb:YAG has been designed, developed and its output performance characterised. The laser system consists of a fibre oscillator, an active mirror regenerative amplifier and a four pass main amplifier. 2.4 mJ, 10 ns, 100 Hz seed pulses from the fibre oscillator/regenerative amplifier arrangement were amplified up to pulse energies of over 200 mJ by using the four pass main amplifier arrangement. As a further study we have obtained an increased slope efficiency of 40% and an optical-to-optical efficiency of 30% using a pinhole vacuum spatial filter/image relay for laser mode control. With 1.8 mJ input seed pulses, output pulse energies of around 150 mJ were achieved.
high repetition rate, Yb:YAG, Yb:YAG ceramic, cryogenic cooling, diode-pumped, solid-state laser, mopa, regenerative amplifier
2199-2203
Pearce, Stuart
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Yasuhara, R.
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Yoshida, A.
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Kawanaka, J.
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Kawashima, T.
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Kan, H.
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1 June 2009
Pearce, Stuart
1d0ee7c5-8f72-4783-a034-9b2f67de3531
Yasuhara, R.
cb8026e7-58f0-464c-94e9-b5b9bb312339
Yoshida, A.
d95bdbd9-162d-431c-8388-cead4dbbd99d
Kawanaka, J.
befe747a-70e7-453e-be2d-cb6ff6a6c39a
Kawashima, T.
2f7dfa72-9b3e-4b3d-8dc7-12cdfad05cfd
Kan, H.
69ea2c7b-1e71-400e-8651-212ba966d436
Pearce, Stuart, Yasuhara, R., Yoshida, A., Kawanaka, J., Kawashima, T. and Kan, H.
(2009)
Efficient generation of 200mJ nanosecond pulses at a 100Hz repetition rate from a cryogenic cooled Yb:YAG MOPA system.
Optics Communications, 282 (11), .
(doi:10.1016/j.optcom.2009.02.051).
Abstract
A diode-pumped Master Oscillator Power Amplifier (MOPA) laser system based on cryogenic cooled Yb:YAG has been designed, developed and its output performance characterised. The laser system consists of a fibre oscillator, an active mirror regenerative amplifier and a four pass main amplifier. 2.4 mJ, 10 ns, 100 Hz seed pulses from the fibre oscillator/regenerative amplifier arrangement were amplified up to pulse energies of over 200 mJ by using the four pass main amplifier arrangement. As a further study we have obtained an increased slope efficiency of 40% and an optical-to-optical efficiency of 30% using a pinhole vacuum spatial filter/image relay for laser mode control. With 1.8 mJ input seed pulses, output pulse energies of around 150 mJ were achieved.
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Published date: 1 June 2009
Keywords:
high repetition rate, Yb:YAG, Yb:YAG ceramic, cryogenic cooling, diode-pumped, solid-state laser, mopa, regenerative amplifier
Organisations:
Nanoelectronics and Nanotechnology
Identifiers
Local EPrints ID: 350321
URI: http://eprints.soton.ac.uk/id/eprint/350321
ISSN: 0030-4018
PURE UUID: d0ca2a0e-4077-46be-9369-11e31d77f809
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Date deposited: 25 Mar 2013 13:14
Last modified: 14 Mar 2024 13:24
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Contributors
Author:
Stuart Pearce
Author:
R. Yasuhara
Author:
A. Yoshida
Author:
J. Kawanaka
Author:
T. Kawashima
Author:
H. Kan
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