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Proceedings Paper

Closed-loop wavefront correction of Ti:sapphire chirped pulse amplification laser beam
Author(s): Katsuaki Akaoka; Sayaka Harayama; Kazuyoku Tei; Yoichiro Maruyama; Takashi Arisawa
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Paper Abstract

We developed a technique to compensate the wavefront distortion of ultra-short pulse Chirped Pulse Amplification (CPA) laser by applying a closed loop wavefront control system consisting of a Shack-Hartmann type wavefront sensor and Bimorph type deformable mirror. As a result of the experiments both Root Mean Square (RMS) and Peak to Valley (P-V) value of the wavefront distortion were reduced to less than 1/5 of the original value, and it was shown that the brightness of laser beam was improved by about five times.

Paper Details

Date Published: 27 May 1998
PDF: 7 pages
Proc. SPIE 3265, Solid State Lasers VII, (27 May 1998); doi: 10.1117/12.308675
Show Author Affiliations
Katsuaki Akaoka, Japan Atomic Energy Research Institute (Japan)
Sayaka Harayama, Japan Atomic Energy Research Institute (Japan)
Kazuyoku Tei, Japan Atomic Energy Research Institute (Japan)
Yoichiro Maruyama, Japan Atomic Energy Research Institute (Japan)
Takashi Arisawa, Japan Atomic Energy Research Institute (Japan)

Published in SPIE Proceedings Vol. 3265:
Solid State Lasers VII
Richard Scheps, Editor(s)

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