Long-pulse, high-energy, narrow-linewidth Nd:LGGG laser at 1336.63 nm with reflecting Bragg grating. (24th February 2017)

• Record Type: Journal Article
• Authors: Li, Jia-Jia; Wang, Zhi-Min; Wang, Ming-Qiang; Zhang, Feng-Feng; Xu, Yi-Chen; Guo, Chuan; Zong, Nan; Zhang, Shen-Jin; Yang, Feng; Gao, Hong-Wei; Yuan, Lei; Bo, Yong; Cui, Da-Fu; Peng, Qin-Jun; Xu, Zu-Yan
• Is Part Of: Laser physics letters. Volume 14:Number 4(2017:Apr.)
• Publication Date: 2017-02-24
• Subjects: long pulse -- optical clock -- 1.3 µm laser; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/aa5f9a
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: A long-pulse, high-energy, narrow-linewidth 1336.63 nm laser based on Nd:(Lu x Gd1− x )3 Ga5 O12 crystal is demonstrated for the first time. A reflecting volume Bragg grating is used as a cavity mirror of the standing-wave cavity to select the desired wavelength. In order to narrow the linewidth, an 8 mm thick etalon is inserted in the cavity. A maximum output energy of 0.66 J at an operation pulse repetition rate of 5 Hz with a pulse width of 770 µ s is obtained. The beam quality factor M 2 is about 1.2. The tuning range is more than 32 pm from 1336.613 to 1336.645 nm through changing the temperature of RVBG. The standard deviation of wavelength stability is about 1.6 pm over 20 min. At the output energy of about 0.59 J, the linewidth is estimated to be 6.79 pm.