Widely tunable and high resolution mid-infrared laser based on BaGa4Se7 optical parametric oscillator

Qing Ye; Hui Kong; Jintian Bian; Jiyong Yao; Enlong Wang; Yunlong Wu; Haiping Xu; Kaihua Wen; Yihua Hu

doi:10.1007/s12200-023-00077-0

Widely tunable and high resolution mid-infrared laser based on BaGa₄Se₇ optical parametric oscillator

Front Optoelectron. 2023 Sep 26;16(1):26. doi: 10.1007/s12200-023-00077-0.

Authors

Qing Ye^{1

2}, Hui Kong^{3

4}, Jintian Bian^{1

2}, Jiyong Yao⁵, Enlong Wang^{1

2}, Yunlong Wu^{1

2}, Haiping Xu^{1

2}, Kaihua Wen^{1

2}, Yihua Hu^{6

7}

Affiliations

¹ State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei, 230037, China.
² Advanced Laser Technology Laboratory of Anhui Province, Hefei, 230037, China.
³ State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei, 230037, China. konghui17@nudt.edu.cn.
⁴ Advanced Laser Technology Laboratory of Anhui Province, Hefei, 230037, China. konghui17@nudt.edu.cn.
⁵ Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
⁶ State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei, 230037, China. skl_hyh@163.com.
⁷ Advanced Laser Technology Laboratory of Anhui Province, Hefei, 230037, China. skl_hyh@163.com.

Abstract

The widely tunable and high resolution mid-infrared laser based on a BaGa₄Se₇ (BGSe) optical parametric oscillator (OPO) was demonstrated. A wavelength tuning range of 2.76-4.64 μm and a wavelength tuning resolution of about 0.3 nm were obtained by a BGSe (56.3°, 0°) OPO, which was pumped by a 1064 nm laser. It is the narrowest reported wavelength tuning resolution for BGSe OPO, and was obtained by simultaneously controlling the angle and temperature of BGSe.

Keywords: BaGa4Se7; High resolution; Optical parametric oscillator; Widely tunable.