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。
研究了非挥发全息记录中由于紫外光的强吸收而引起的光栅非均匀性，分析了这种非均匀性对光栅衍射效率的影响。
The grating non-uniformity of the nonvolatile volume hologram recording in doubly doped LiNbO_3(LN) crystals mainly caused by strong ultraviolet (UV) absorption is studied in detail.
结果表明双侧紫外光照射能够实现均匀性较好的光栅，是提高衍射效率的有效途径之一。；
Well uniform gratings can be obtained and diffraction efficiency can be greatly enhanced by using this optimization scheme.
结果显示，非均匀性致使光折变光栅的平均强度减弱，衍射效率降低。
The average saturation space-charge field is small and the diffraction efficiency is low as a result of the non-uniformity of the grating.
结果显示，非均匀性致使光折变光栅的平均强度减弱，衍射效率降低。
The average saturation space-charge field is small and the diffraction efficiency is low as a result of the non-uniformity of the grating.
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