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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 19 — Sep. 15, 2008
  • pp: 14875–14881

0.3% energy stability, 100-millijoule-class, Ti:sapphire chirped-pulse eight-pass amplification system

Shigeki Tokita, Masaki Hashida, Shinichiro Masuno, Shin Namba, and Shuji Sakabe  »View Author Affiliations

Optics Express, Vol. 16, Issue 19, pp. 14875-14881 (2008)

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Highly stable operation of a two-stage multipass Ti:sapphire amplifier (a four-pass pre-amplifier and a four-pass power amplifier) for a 100-mJ-class chirped-pulse amplification system has been demonstrated by passive stabilization. By optimizing the ratio of pump energies to the two amplifiers and the optical losses artificially inserted into the second power amplifier, a root-mean-square fluctuation in pulse energy of 0.3% was achieved, which was 5 times lower than that of the pump laser. This is the lowest pulse-to-pulse fluctuation, to the best of our knowledge, obtained by the 100-mJ-class Ti:sapphire amplifiers.

© 2008 Optical Society of America

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.3590) Lasers and laser optics : Lasers, titanium
(140.3425) Lasers and laser optics : Laser stabilization

ToC Category:
Lasers and Laser Optics

Original Manuscript: June 24, 2008
Revised Manuscript: August 9, 2008
Manuscript Accepted: August 14, 2008
Published: September 5, 2008

Shigeki Tokita, Masaki Hashida, Shinichiro Masuno, Shin Namba, and Shuji Sakabe, "0.3% energy stability, 100-millijoule-class, Ti:sapphire chirped-pulse eight-pass amplification system," Opt. Express 16, 14875-14881 (2008)

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