Closed-loop wavefront correction of Ti:sapphire chirped pulse amplification laser beam

Katsuaki Akaoka; Sayaka Harayama; Kazuyoku Tei; Yoichiro Maruyama; Takashi Arisawa

doi:10.1117/12.308675

27 May 1998 Closed-loop wavefront correction of Ti:sapphire chirped pulse amplification laser beam

Katsuaki Akaoka, Sayaka Harayama, Kazuyoku Tei, Yoichiro Maruyama, Takashi Arisawa

Proceedings Volume 3265, Solid State Lasers VII; (1998) https://doi.org/10.1117/12.308675
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

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.

Citation Download Citation

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

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