Design and optimization of the seed pulse generation scheme for precise beam synchronization in the Xingguang-III laser

• Published in: Applied optics. Optical technology and biomedical optics Vol. 55; no. 28; p. 8003
• Main Authors: Zhou, Song, Zeng, Xiaoming, Zhou, Kainan, Huang, Xiaojun, Wang, Xiaodong, Wang, Xiao, Xie, Na, Jiang, Dongbin, Wu, Zhaohui, Zhao, Lei, Wen, Jing, Zhang, Ying, Huang, Zheng, Sun, Li, Guo, Yi, Li, Qing, Zhu, Qihua, Su, Jingqin, Jing, Feng
• Format: Journal Article
• Language: English
• Published: United States 01.10.2016
• ISSN: 2155-3165
• DOI: 10.1364/AO.55.008003

Xingguang-III is a large hybrid optical parametric amplification/chirped pulse amplification laser that outputs synchronized femtosecond, picosecond, and nanosecond beams with three different wavelengths, i.e., 800, 1053, and 527 nm, respectively. We present here an in-house front-end system design that generates the 1053 nm seed laser for the ps/ns beam directly from the 800 nm femtosecond laser, which enables the three beams to have intrinsic synchronization. The results show that a seed laser of 140 μJ energy and 1053 nm central wavelength with 34 nm spectral width (FWHM) is generated and the shot-to-shot timing jitter (peak-to-valley) between the fs and the ps beam is less than 1.32 ps.