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Proceedings Paper

Chirped-pulse amplification experiments on the VULCAN Nd:glass laser facility
Author(s): Colin N. Danson; L. J. Barzanti; Chungu Zenghu; A. R. Damerell; Mike D. Dooley; Christopher B. Edwards; S. Hancock; Michael H. Key; R. Mahadeo; M. R. G. Miller; Peter A. Norreys; C. E. Ollman; David A. Pepler; D. A. Rodkiss; Ian N. Ross; M. A. Smith; P. F. Taday; W. T. Toner; K. Wigmore; T. B. Winstone; R. W. W. Wyatt; Shen Luan; F. N. Beg; Angus S. Bell; A. E. Dangor; Marcus Henry R. Hutchinson; P. Lee; Ian P. Mercer; Roland A. Smith; F. Zhou; A. P. Fews
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Paper Abstract

A Chirped Pulse Amplification (CPA) mode of operation is being developed on the VULCAN high power Nd:glass laser system, at the Rutherford Appleton Laboratory (RAL). Experiments have been carried out using an interim configuration yielding pulses of up to 30 J on target of 2.4 picoseconds length at focused intensities up to 4 X 1017 W cm-2, with contrast ratio of 106. In the CPA technique the amplification of a stretched pulse to high energy followed by recompression provides a means of delivering a higher peak power to target than can be propagated through the laser system due to non-linear effects and component damage thresholds. In the system described here a grating pair is used to stretch a transform limited pulse of 2 ps, to 80 ps prior to amplification to high energy (80 J). The linear stretch produced by the gratings enables the pulse to be recompressed without pedestal. Recompression to the 10 TW level by a second grating pair is carried out in a vacuum propagation and reflective focusing system to avoid non-linear effects in air, windows and lenses.

Paper Details

Date Published: 8 July 1993
PDF: 11 pages
Proc. SPIE 1860, Short-Pulse High-Intensity Lasers and Applications II, (8 July 1993); doi: 10.1117/12.147582
Show Author Affiliations
Colin N. Danson, Rutherford Appleton Lab. (United Kingdom)
L. J. Barzanti, Rutherford Appleton Lab. (United Kingdom)
Chungu Zenghu, Rutherford Appleton Lab. (China)
A. R. Damerell, Rutherford Appleton Lab. (United Kingdom)
Mike D. Dooley, Rutherford Appleton Lab. (United Kingdom)
Christopher B. Edwards, Rutherford Appleton Lab. (United Kingdom)
S. Hancock, Rutherford Appleton Lab. (United Kingdom)
Michael H. Key, Rutherford Appleton Lab. (United States)
R. Mahadeo, Rutherford Appleton Lab. (United Kingdom)
M. R. G. Miller, Rutherford Appleton Lab. (United Kingdom)
Peter A. Norreys, Rutherford Appleton Lab. (United Kingdom)
C. E. Ollman, Rutherford Appleton Lab. (United Kingdom)
David A. Pepler, Rutherford Appleton Lab. (United Kingdom)
D. A. Rodkiss, Rutherford Appleton Lab. (United Kingdom)
Ian N. Ross, Rutherford Appleton Lab. (United Kingdom)
M. A. Smith, Rutherford Appleton Lab. (United Kingdom)
P. F. Taday, Rutherford Appleton Lab. (United Kingdom)
W. T. Toner, Rutherford Appleton Lab. (United Kingdom)
K. Wigmore, Rutherford Appleton Lab. (United Kingdom)
T. B. Winstone, Rutherford Appleton Lab. (United Kingdom)
R. W. W. Wyatt, Rutherford Appleton Lab. (United Kingdom)
Shen Luan, Imperial College of Science, Technology and Medicine (United States)
F. N. Beg, Imperial College of Science, Technology and Medicine (United Kingdom)
Angus S. Bell, Imperial College of Science, Technology and Medicine (United Kingdom)
A. E. Dangor, Imperial College of Science, Technology and Medicine (United Kingdom)
Marcus Henry R. Hutchinson, Imperial College of Science, Technology and Medicine (United Kingdom)
P. Lee, Imperial College of Science, Technology and Medicine (United Kingdom)
Ian P. Mercer, Imperial College of Science, Technology and Medicine (United Kingdom)
Roland A. Smith, Imperial College of Science, Technology and Medicine (United Kingdom)
F. Zhou, Imperial College of Science, Technology and Medicine (United Kingdom)
A. P. Fews, Univ. of Bristol (United Kingdom)


Published in SPIE Proceedings Vol. 1860:
Short-Pulse High-Intensity Lasers and Applications II
Hector A. Baldis, Editor(s)

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