title: Experimental demonstration of joule-level non-collinear optical parametric chirped-pulse amplification in yttrium calcium oxyborate.
abstract: In this Letter, we report on what is, to our knowledge, the first experimental demonstration of yttrium calcium oxyborate (YCOB) for joule-level and broadband non-collinear optical parametric chirped-pulse amplification centered at 800 nm. Based on a Ti:sapphire chirped-pulse amplification front end, an amplified signal energy of 3.36 J was generated with a pump of 35 J in the crystal. Compressed pulse duration of 44.3 fs, with a bandwidth of 49 nm, was achieved. The results confirm that YCOB crystal is another potential alternative as a final amplifier besides Ti:sapphire in a petawatt laser at 800 nm.
authors.affiliation: State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China.
authors.forename: Lianghong
authors.initials: L
authors.lastname: Yu
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Liang
authors.forename: Jinfeng
authors.initials: J
authors.lastname: Li
authors.forename: Anhua
authors.initials: A
authors.lastname: Wu
authors.forename: Yanqing
authors.initials: Y
authors.lastname: Zheng
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Lu
authors.forename: Cheng
authors.initials: C
authors.lastname: Wang
authors.forename: Yuxin
authors.initials: Y
authors.lastname: Leng
authors.forename: Jun
authors.initials: J
authors.lastname: Xu
authors.forename: Ruxin
authors.initials: R
authors.lastname: Li
authors.forename: Zhizhan
authors.initials: Z
authors.lastname: Xu