1. National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, People’s Republic of China
2. Institute of Optoelectronics Technology, Harbin Institute of Technology, Harbin, People’s Republic of China
3. Tianjin Key Laboratory of Optical Thin Film, Tianjin Jinhang Technical Physics Institute, Tianjin, People’s Republic of China