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Mid-infrared laser emission from Cr:ZnS channel waveguide fabricated by femtosecond laser helical writing

机译:飞秒激光螺旋写入法制备的Cr:ZnS通道波导的中红外激光发射

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摘要

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.
机译:演示了使用飞秒激光直接写入和螺旋运动技术制造的Cr:ZnS多晶沟道波导中2244 nm的中红外激光的工作情况。实现了78 mW的最大功率输出和8.6%的光光斜率。通过直接飞秒激光写入获得了长度为2mm的紧凑型波导结构,该结构沿螺旋线轨迹沿着激光介质轴并平行于写入方向移动。

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