Dependence of spectrum on pump-signal angle in BBO-I noncollinear optical-parametric chirped-pulse amplification |
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Authors: | X. Yang Z. Xu Z. Zhang Y. Leng J. Peng J. Wang S. Jin W. Zhang R. Li |
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Affiliation: | (1) Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O.Box 800-211, Shanghai 201800, China, CN |
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Abstract: | A BBO-I noncollinear optical-parametric chirped-pulse amplifier pumped by a Q-switched and frequency-doubled Nd:YAG laser has been demonstrated. At an optimal pump-signal angle, the temporally stretched chirped signal pulses with bandwidth of 36 nm (FWHM) were amplified without any distortion in spectrum. The gain bandwidth was very sensitive to the pump-signal angle. Variation of this angle by about 1.5 mrad may significantly reduce the amplified bandwidth and result in a significant distortion in the amplified spectrum. Received: 5 October 2000 / Revised version: 13 June 2001 / Published online: 19 September 2001 |
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Keywords: | PACS: 42.60.Lh 42.62.Fi 42.65.-K 42.65.Re 42.65.Yj |
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