Abstract

A good thermo-optic property of strontium dodeca-aluminum oxide (SrAl₁₂O₁₂, SRA) host material is very advantageous to the development of high-performance lasers by doping rare-earth ions for gain medium. In this work, we report on diode-end-pumped high-performance continuous-wave and passively Q-switched Nd:SRA lasers. For continuous-wave operation, a maximum output power of 6.45 W is achieved at 1049 nm with a slope efficiency of about 41.6%. Using a Y₃Al₅O₁₂ (YAG) etalon, we have firstly achieved a 1066 nm laser with a maximum output power of 4.15 W and a slope efficiency of about 27%, to the best of our knowledge. For passively Q-switched operation, with Cr⁴⁺:YAG as a saturable absorber, a maximum average output power of 1.82 W was achieved with the shortest pulse width of 18.2 ns at pulse repetition rate of 22.9 kHz. The single-pulse energy and pulse peak power were 79.4 μJ and 4.3 kW. This work has further verified that the Nd:SRA crystal is very promising for high-performance laser generation.

© 2022 Chinese Laser Press

Continuous-wave and passively Q-switched laser performance of LD-end-pumped 1062 nm Nd:GAGG laser

Yuchun Zhi, Chunming Dong, Jian Zhang, Zhitai Jia, Baitao Zhang, Yongzhuan Zhang, Shanpeng Wang, Jingliang He, and Xutang Tao
Opt. Express 18(8) 7584-7589 (2010)

Continuous wave and Q-switched laser output of laser-diode-end-pumped disordered Nd:LGS laser

Yonggui Yu, Jiyang Wang, Huaijin Zhang, Zhengping Wang, Haohai Yu, and Minhua Jiang
Opt. Lett. 34(4) 467-469 (2009)

Passively Q-switched performance of a Nd:Gd₃Ga₅O₁₂ eye-safe laser at 1423.4  nm with Co²⁺:LaMgAl₁₁O₁₉ as saturable absorber

Huanian Zhang, Baomin Ma, Xiaohan Chen, Qingpu Wang, Xutang Tao, and Ping Li
Appl. Opt. 52(35) 8576-8580 (2013)

Spectroscopy and laser operation of Sm³⁺-doped lithium lutetium tetrafluoride (LiLuF₄) and strontium hexaaluminate (SrAl₁₂O₁₉)

Daniel-Timo Marzahl, Philip Werner Metz, Christian Kränkel, and Günter Huber
Opt. Express 23(16) 21118-21127 (2015)

Diode-pumped continuous-wave and passively Q-switched Nd:GdLaNbO₄ laser

Yufei Ma, Haiyue Sun, Zhenfang Peng, Shoujun Ding, Fang Peng, Xin Yu, and Qingli Zhang
Opt. Mater. Express 8(4) 983-991 (2018)