title: Scattering-initiated parametric noise in optical parametric chirped-pulse amplification.
abstract: We experimentally study a new kind of parametric noise that is initiated from signal scattering and enhanced through optical parametric amplification. Such scattering-initiated parametric noise behaves similarly to parametric super-fluorescence in the spatial domain, yet is typically much stronger. In the time domain it inherits the chirp of signal pulses and can be well compressed. We demonstrate that scattering-initiated parametric noise has little influence on the pulse contrast but can degrade the energy conversion efficiency substantially.
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Jingui
authors.initials: J
authors.lastname: Ma
authors.forename: Peng
authors.initials: P
authors.lastname: Yuan
authors.forename: Daolong
authors.initials: D
authors.lastname: Tang
authors.forename: Binjie
authors.initials: B
authors.lastname: Zhou
authors.forename: Guoqiang
authors.initials: G
authors.lastname: Xie
authors.forename: Liejia
authors.initials: L
authors.lastname: Qian