Acta Optica Sinica, Volume. 31, Issue 7, 719001(2011)
A New Method Using Chirp-Matching OPCPA Scheme for Improving Signal-to-Noise Ratio of Ultrashort Laser Pulse
A method using chirp-matching optical parametric chirped pulse amplification (OPCPA) scheme to improve the signal-to-noise ratio (SNR) of ultrashort laser pulse is proposed. Comparing the chirp-matching OPCPA scheme with the usual OPCPA scheme, it is shown that the chirp-matching OPCPA scheme can improve significantly the SNR of ultrashort laser pulse, and obtain high conversion efficiency simultaneously. The method for determining the chirp parameter which satisfies the chirp-matching condition is presented. The effects of the crystal length, the noise bandwidth, the pump chirp, as well as the synchronization of signal and pump pulses on the improvement of SNR are also analyzed by numerical simulation.
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Zeng Shuguang, Zhang Bin, Li Xianhua, Sun Nianchun, Sui Zhan. A New Method Using Chirp-Matching OPCPA Scheme for Improving Signal-to-Noise Ratio of Ultrashort Laser Pulse[J]. Acta Optica Sinica, 2011, 31(7): 719001
Category: Nonlinear Optics
Received: Jan. 15, 2011
Accepted: --
Published Online: Jun. 24, 2011
The Author Email: Shuguang Zeng (zengshuguang19@sohu.com)