亚微米光栅型导光板通过光栅空频控制出射光方向、控制槽深调节衍射效率，达到导光板出射光强的均匀性。
The transmission angle is controlled by grating frequency and the diffraction efficiency is controlled by groove depth of sub-micro gratings to get uniformity of transmission filed.
分析了单侧CO2激光脉冲曝光导致长周期光纤光栅横截面折射率分布的不均匀性。
The CO2 laser incident on the fiber result in an asymmetric refractive-index distribution within the cross-section of the LPFG.
本文提出一种新的圆光栅均匀性和调制度检测方法。
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