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微型光学陀螺仪是基于Ｓａｇｎａｃ效应，采用先进的集成光学技术研制的新型光学陀螺仪。研制微型光学陀螺仪的关键在于用频率调制来实现频率伺服，对主要误差进行有效抑制，实现高精度Ｓａｇｎａｃ频差测量。声表面波声光移频器正是解决上述技术关键的一个集成光学核心器件。针对微型光学陀螺仪对声表面波声光移频器所提出的衍射效率为３％～５％，频移范围±３００ｋＨｚ，短期频率稳定度优于１０－８这些特殊要求，依据声光理论进行了分析与特殊设计。采用平面集成光学工艺，在Ｋ８玻璃基片上研制出声表面波声光移频器。实验结果表明，该器件已初步满足设计要求。
Micro-optical gyroscope is based on the Sagnac effect, the use of advanced integrated optical technology developed by the new optical gyroscope. The key to develop miniature optical gyroscope is to use frequency modulation to realize frequency servo, to effectively suppress the main error and achieve high-precision Sagnac frequency difference measurement. SAW acousto-optic frequency shifter is the key technology to solve the above integrated optical core device. According to the special requirements of the micro-optical gyroscope for the SAW acousto-optic frequency shifter, the diffraction efficiency is 3% ~ 5%, the frequency shift range is ± 300kHz and the short-term frequency stability is better than 10-8. According to the acoustooptic theory Analysis and special design. The use of planar integrated optical technology, developed on the K8 glass substrate SAW acousto-optic frequency shifter. Experimental results show that the device has initially met the design requirements.