Continuous wave and SnSe2/PdSe2 passively Q-switched Nd:GdNbO4 laser under direct pumping. (January 2021)

• Record Type: Journal Article
• Authors: Ma, Yufei; Zhang, Shanchun; Zhang, Zhonghua; Liu, Xiaoxu; Ding, Shoujun; Liu, Wenpeng; Zhang, Qingli
• Is Part Of: Optics & laser technology. Volume 133(2021)
• Publication Date: 2021-01
• Subjects: Nd:GdNbO4 -- SnSe2 -- PdSe2 -- Direct pumping -- Passively Q-switched; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2020.106558
• Languages: English
• ISSNs: 0030-3992

Abstract

Highlights: CW and pulsed1066 nm Nd:GdNbO4 laser under direct pumping was demonstrated. The comparison between indirect pumping and direct pumping was performed. Pulsed SnSe2 /Nd:GdNbO4 and PdSe2 /Nd:GdNbO4 lasers were obtained for the first time. Abstract: In this paper, a continuous wave (CW) and two-dimensional (2D) tin diselenide (SnSe2 ) and palladium diselenide (PdSe2 ) passively Q-switched Nd:GdNbO4 laser under direct pumping was demonstrated for the first time. The CW laser performance under the pump at 879 nm was compared to that using traditional 808 nm pumping. The 2D SnSe2 and PdSe2 nanosheets were synthesized by chemical vapor deposition (CVD) technique. The optical properties and microstructures of two nanosheets were investigated. In the passively Q-switched operation, the highest repetition rate, narrowest pulse width, maximum pulse energy and peak power of SnSe2 /Nd:GdNbO4 laser were 160 kHz, 555 ns, 2.3 μJ and 4.2 W, respectively. And for PdSe2 /Nd:GdNbO4 laser, the corresponding values were 143 kHz, 530 ns, 3.7 μJ and 7.0 W, respectively.