High-Resolution Laser in Widely Tunable Range (4.16–7.13 µm) Based on Mid-Infrared BaGa<sub>4</sub>Se<sub>7</sub> Optical Parametric Oscillator Pumped at 1064 nm
Xinqiang Zhao,
Hui Kong,
Jierui Zou,
Guorui Lv,
Jintian Bian,
Haiping Xu,
Kaihua Wen,
Xiuhong Jiang,
Yunfan Ma
Affiliations
Xinqiang Zhao
State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China
Hui Kong
State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China
Jierui Zou
State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China
Guorui Lv
State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China
Jintian Bian
State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China
Haiping Xu
State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China
Kaihua Wen
State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China
Xiuhong Jiang
State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China
Yunfan Ma
State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China
A widely tunable 4.16–7.31 μm high-resolution mid-infrared optical parametric oscillator with a type-I BaGa4Se7 (BGSe) crystal pumped by a 1064 nm laser was demonstrated for the first time. We have achieved a wavelength tuning accuracy of less than 5 nm through simultaneously performing temperature tuning and angular tuning on the BGSe (46°, 0°) Optical Parametric Oscillation (OPO). The wavelength resolution will be less than 1 nm when using commercial temperature control equipment.
