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为了满足测量的高分辨率和灵敏度，基于光栅为关键元件的光学测量方法要求光栅有很高的频率。在已有的高折射率介质制栅方法的基础上提出了一种新的制作超高频全息光栅的方法，该方法制栅准确、简单、方便，其特点是所制光栅的频率与激光波长及介质的折射率无直接关系，而是等于制栅光路所得频率与两倍母栅频率之和。实验表明，利用该方法制得１００００线／ｍｍ的光栅是完全可能的
In order to meet the high resolution and sensitivity of the measurement, optical measurement methods based on grating as a key element require a high frequency of the grating. A new method of making UHF holographic gratings is proposed based on the existing grid method of high refractive index medium. The method has the advantages of accurate, simple and convenient grid formation, and is characterized in that the grating frequency and the laser wavelength And the refractive index of the medium is not directly related to, but equal to the grating light path and the mother frequency twice the sum of the mother frequency. Experiments show that the use of this method to obtain grating 10,000 lines / mm is entirely possible