Influence of chirp match and synchronization jitter on optical parametric chirped pulse amplification

In the process of optical parametric chirped pulse amplification, a chirp matching method for signal-and-pump synchronization has been established by studying the variation of conversion efficiency with pump pulse chirped parameters and the corresponding relationship between signal and pump wavelengths. Taking KDP crystal as the nonlinear crystal, the effects of chirp match and synchronization jitter on the pulse profile and conversion efficiency of optical parametric chirped pulse amplification have been studied. The results indicate that, in the case of time synchronization, the chirp matched pulse profile is considerably symmetrical and the conversion efficiency is high. For a given synchronization jitter, the signal gain and pulse profile after amplification are quite different for dif