Peng Ya-Pei, Zou Xiao, Bai Zhengyuan, Leng Yuxin, Jiang Benxue, Jiang Xiongwei, Zhang Long
Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
University of Chinese Academy of Sciences, Beijing 100039, China.
Sci Rep. 2015 Dec 22;5:18365. doi: 10.1038/srep18365.
The operation of a mid-infrared laser at 2244 nm in a Cr:ZnS polycrystalline channel waveguide fabricated using direct femtosecond laser writing with a helical movement technique is demonstrated. A maximum power output of 78 mW and an optical-to-optical slope efficiency of 8.6% are achieved. The compact waveguide structure with 2 mm length was obtained through direct femtosecond laser writing, which was moved on a helical trajectory along the laser medium axis and parallel to the writing direction.
展示了一种采用螺旋运动技术的直接飞秒激光写入法制造的Cr:ZnS多晶通道波导中2244 nm中红外激光器的运行情况。实现了78 mW的最大功率输出和8.6%的光-光斜率效率。通过直接飞秒激光写入获得了长度为2 mm的紧凑型波导结构，该结构沿激光介质轴并平行于写入方向在螺旋轨迹上移动。
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