We experimentally demonstrated the contrast enhancement in a Ti:sapphire chirped-pulse amplification (CPA) laser with a noncollinear femtosecond optical-parametric amplifier. A total gain of and pulse energy of were achieved. With the clean high-energy seeding pulse, the contrast ratio of the main amplified laser pulse to the amplified spontaneous emission in the Ti: sapphire CPA laser system was improved to around within the time scale of hundreds of picoseconds.
© 2010 Optical Society of AmericaFull Article | PDF Article
Hiromitsu Kiriyama, Norihiro Inoue, Yutaka Akahane, and Koichi Yamakawa
Opt. Express 14(1) 438-445 (2006)
K. Yamakawa, M. Aoyama, Y. Akahane, K. Ogawa, K. Tsuji, A. Sugiyama, T. Harimoto, J. Kawanaka, H. Nishioka, and M. Fujita
Opt. Express 15(8) 5018-5023 (2007)
V. Bagnoud, J. D. Zuegel, N. Forget, and C. Le Blanc
Opt. Express 15(9) 5504-5511 (2007)