Compact Partially End-Pumped Innoslab Laser Based on Micro-Cylindrical Lens Array Homogenizer
Xinhui Sun,
Xiaonan Zhao,
Jinxin Chen,
Yajun Wu,
Yibin Fu,
Gang Cheng,
Xi Chen,
Pan Liu,
Linhao Shang,
Guangqiang Fan,
Huihui Gao,
Yan Xiang,
Tianshu Zhang
Affiliations
Xinhui Sun
Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
Xiaonan Zhao
Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
Jinxin Chen
Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
Yajun Wu
Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
Yibin Fu
Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Gang Cheng
Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
Xi Chen
Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
Pan Liu
Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Linhao Shang
Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
Guangqiang Fan
Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Huihui Gao
Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Yan Xiang
Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
Tianshu Zhang
Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
We demonstrate a compact, partially end-pumping Innoslab laser based on a micro-cylindrical lens array homogenizer. A dimension of 12 × 0.4 mm2 flat-top pumping line with a Gaussian intensity distribution across the line was simulated by the ray tracing technique. The rate equations considering the asymmetric transverse spatial distributions are theoretically developed. The simulation results are in good agreement with the experimental results. Preliminary data shows that for a pump power of 260 W, a maximum pulse energy of 15.7 mJ was obtained with a pulse width of 8.5 ns at a repetition frequency of 1 kHz. The beam quality M2 factors in the unstable and stable directions were 1.732 and 1.485, respectively. The technology has been successfully applied to temperature and humidity profiling lidar and ozone lidar and has been productized, yielding direct economic value.
