title: Coherent combination of femtosecond pulses via non-collinear cross-correlation and far-field distribution.
abstract: We propose and demonstrate a method for active parallel coherent combinations of ultra-short laser pulses. The relative synchronization error, piston, and tilt between combined beams are controlled based on the non-collinear cross-correlation and the far-field distribution. In a proof-of-principle experiment, two 29.8 fs pulses are coherently combined with the combining efficiency as high as 99%. This study opens up a way to further scale the peak intensity and provides support for the next-generation ultra-intense laser systems.
authors.forename: Jie
authors.initials: J
authors.lastname: Mu
authors.forename: Zhilin
authors.initials: Z
authors.lastname: Li
authors.forename: Feng
authors.initials: F
authors.lastname: Jing
authors.forename: Qihua
authors.initials: Q
authors.lastname: Zhu
authors.forename: Kainan
authors.initials: K
authors.lastname: Zhou
authors.forename: Shaoyi
authors.initials: S
authors.lastname: Wang
authors.forename: Song
authors.initials: S
authors.lastname: Zhou
authors.forename: Na
authors.initials: N
authors.lastname: Xie
authors.forename: JingQin
authors.initials: J
authors.lastname: Su
authors.forename: Junwei
authors.initials: J
authors.lastname: Zhang
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Zeng
authors.forename: Yanlei
authors.initials: Y
authors.lastname: Zuo
authors.forename: Leifeng
authors.initials: L
authors.lastname: Cao
authors.forename: Xiao
authors.initials: X
authors.lastname: Wang