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采用反射式达曼光栅建立了一种产生飞秒激光双脉冲的新装置.由于采用反射式结构,避免了材料色散和吸收导致的脉冲畸变,并构建了一台二次谐波-频率分辨光学开关装置对产生的双脉冲进行了测量.实验结果表明可以实现脉冲强度相等、时间宽度相同、不同间隔的双脉冲输出.产生双脉冲的装置在飞秒激光领域有着应用的价值.
The use of reflective Daman grating to create a new device to produce double pulses of femtosecond laser due to the use of reflective structure to avoid the material dispersion and absorption caused by the pulse distortion and to build a second harmonic - frequency resolution optics The switching device is used to measure the double pulse.The experimental results show that it is possible to realize double pulse output with the same pulse intensity, the same time width and different intervals.The double pulse generating device has the application value in the femtosecond laser field.