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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 10 — May. 15, 2010
  • pp: 1497–1499

High temporal and spatial quality petawatt-class Ti:sapphire chirped-pulse amplification laser system

Hiromitsu Kiriyama, Michiaki Mori, Y. Nakai, T. Shimomura, H. Sasao, M. Tanoue, S. Kanazawa, D. Wakai, F. Sasao, H. Okada, I. Daito, M. Suzuki, S. Kondo, K. Kondo, A. Sugiyama, P. R. Bolton, A. Yokoyama, H. Daido, S. Kawanishi, T. Kimura, and T. Tajima  »View Author Affiliations


Optics Letters, Vol. 35, Issue 10, pp. 1497-1499 (2010)
http://dx.doi.org/10.1364/OL.35.001497


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Abstract

Optical parametric chirped-pulse amplification (OPCPA) operation with low gain by seeding with high-energy, clean pulses is shown to significantly improve the contrast to better than 10 10 to 10 11 in a high-intensity Ti:sapphire laser system that is based on chirped-pulse amplification. In addition to the high-contrast broadband, high-energy output from the final amplifier is achieved with a flat-topped spatial profile of filling factor near 77%. This is the result of pump beam spatial profile homogenization with diffractive optical elements. Final pulse energies exceed 30 J, indicating capability for reaching peak powers in excess of 500 TW.

© 2010 Optical Society of America

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(170.7160) Medical optics and biotechnology : Ultrafast technology
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(320.7090) Ultrafast optics : Ultrafast lasers
(230.4480) Optical devices : Optical amplifiers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 16, 2010
Revised Manuscript: March 31, 2010
Manuscript Accepted: April 5, 2010
Published: May 4, 2010

Citation
Hiromitsu Kiriyama, Michiaki Mori, Y. Nakai, T. Shimomura, H. Sasao, M. Tanoue, S. Kanazawa, D. Wakai, F. Sasao, H. Okada, I. Daito, M. Suzuki, S. Kondo, K. Kondo, A. Sugiyama, P. R. Bolton, A. Yokoyama, H. Daido, S. Kawanishi, T. Kimura, and T. Tajima, "High temporal and spatial quality petawatt-class Ti:sapphire chirped-pulse amplification laser system," Opt. Lett. 35, 1497-1499 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-10-1497


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References

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