SNR improvement based on non-collinear OPCPA with angular spectral dispersion in BBO crystal

作者：Ye Rong; Zhang Bin^*; Sun Nian chun

来源：Optics Communications, 2014, 322: 27-31.

DOI：10.1016/j.optcom.2014.02.001

• Optical parametric chirped pulse
• amplification
• Angular spectral dispersion
• Signal-to-noise ratio
• Conversion efficiency
• BBO crystal

The characteristics of the signal-to-noise ratio (SNR) improvement based on non-collinear optical parametric chirped pulse amplification (OPCPA) with angular spectral dispersion (ASD) was revealed and investigated. The angular dispersion formula was derived theoretically and the effects of crystal length, pump peak intensity, noise characteristics and angular dispersion on the SNR improvement and conversion efficiency were discussed. Furthermore, by optimizing the critical parameters, 35% conversion efficiency and more than 3 orders of magnitude of SNR improvement were achieved for the chirped signal pulse with a central wavelength of 800 urn, pumped by 532 nm in presented amplification scheme with BBO crystal.

• 出版日期2014-7-1
• 单位四川大学