Compact diode-pumped continuous-wave and passively Q-switched Nd:GYSO laser at 1.07 µm. (August 2016)

• Record Type: Journal Article
• Authors: Lin, Zhi; Huang, Xiaoxu; Lan, Jinglong; Cui, Shengwei; Wang, Yi; Xu, Bin; Luo, Zhengqian; Xu, Huiying; Cai, Zhiping; Xu, Xiaodong; Zhang, Xiaoyan; Wang, Jun; Xu, Jun
• Is Part Of: Optics & laser technology. Volume 82(2016)
• Page Start: 82
• Page End: 86
• Publication Date: 2016-08
• Subjects: Nd:GYSO disorder crystal -- Passive Q-switching -- MoS2 saturable absorber; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2016.02.017
• Languages: English
• ISSNs: 0030-3992

Abstract

Abstract: We report diode-pumped continuous-wave (CW) and Q-switched Nd:GYSO lasers using a compact two-mirror linear laser cavity. Single-wavelength laser emissions at 1074.11 nm with 4.1-W power and at 1058.27 nm with 1.47-W power have been obtained in CW mode. The slope efficiencies with respect to the absorbed pump powers are 48.5% and 22.9%, respectively. Wavelength tunability is also demonstrated with range of about 8 nm. Using a MoS2 saturable absorber, maximum average output power up to 410 mW at 1074 nm can be yielded with absorbed pump power 6.41 W and the maximum pulse energy reaches 1.20 μJ with pulse repetition rate of 342.5 kHz and shortest pulse width of 810 ns. The CW laser results represent the best laser performance and the Q-switching also present the highest output power for Q-switched Nd 3+ lasers with MoS2 as saturable absorber. Highlights: We obtained the highest output power and efficiency of Nd:GYSO laser at 1.07 µm. We obtained the first 1058 nm Nd:GYSO laser in free-running mode. We obtained the first wavelength tuning of Nd:GYSO laser. We obtained the highest average output power of MoS2 -based Q-switched Nd 3+ laser.