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Highly efficient transmission gratings in fused silica for chirped-pulse amplification systems

机译:chi脉冲放大系统中的熔融石英高效透射光栅

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摘要

We report on highly efficient transmission gratings in fused silica with a grating period of 800 nm generated by electron-beam lithography. At a wavelength of 1060 nm, 95% diffraction efficiency is achieved under Littrow conditions. The damage threshold, extremely enhanced compared with conventional gold-coated diffraction gratings, makes these gratings the key elements in high average power (>100 W) femtosecond fiber chirped-pulse amplification systems.
机译:我们报道了由电子束光刻产生的800 nm光栅周期的熔融石英中的高效透射光栅。在1060 nm的波长下,在Littrow条件下可获得95%的衍射效率。与传统的镀金衍射光栅相比,损伤阈值得到了极大的提高,使这些光栅成为高平均功率(> 100 W)飞秒光纤chi脉冲放大系统中的关键元件。

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