27 May 1998 Closed-loop wavefront correction of Ti:sapphire chirped pulse amplification laser beam
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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.
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Katsuaki Akaoka, Katsuaki Akaoka, Sayaka Harayama, Sayaka Harayama, Kazuyoku Tei, Kazuyoku Tei, Yoichiro Maruyama, Yoichiro Maruyama, Takashi Arisawa, Takashi Arisawa, } "Closed-loop wavefront correction of Ti:sapphire chirped pulse amplification laser beam", Proc. SPIE 3265, Solid State Lasers VII, (27 May 1998); doi: 10.1117/12.308675; https://doi.org/10.1117/12.308675
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