High-extraction-efficiency, nanosecond bidirectional ring amplifier with twin pulses. (2019)

• Record Type: Journal Article
• Authors: Yu, Tiancheng; Guo, Jiangtao; Xia, Gang; Zhang, Xiang; Gao, Fan; Wang, Jiangfeng; Fan, Wei; Yuan, Xiao
• Is Part Of: High power laser science and engineering. Volume 7(2019)
• Publication Date: 2019
• Subjects: lasers, -- pulsed lasers, -- laser amplifier, -- ring; High power lasers -- Periodicals; 621.366
• DOI: 10.1017/hpl.2019.14
• Languages: English
• ISSNs: 2095-4719

Abstract

Abstract : The output performances of a bidirectional ring amplifier with twin pulses are demonstrated. Compared to the extraction efficiency of 32% for single-pulse injection, the extraction efficiency of stored energy for twin-pulse injection with bidirectional propagation is increased to 60%. The maximum output energies of the twin pulses are 347 mJ and 351 mJ, and the output energy of a single pulse is only 373 mJ under the same amplifier operating conditions. The experimental results show that the bidirectional ring amplifier with twin pulses can achieve a higher extraction efficiency of stored energy at a lower operating fluence, and has potential applications in high-power and high-energy laser facilities.