本論文主要目的是將布拉格簡併現象運用在位置伺服技術。我們模擬探討在不同系統架構下對於布拉格簡併效應的影響，並提出具備最佳位移探測精準度並兼具側向位移容忍度之架構。最後用實驗驗證架構可行性，成功使用柱狀波作為參考光源，初步的實現了布拉簡併的位置探測技術。

The main target of this thesis is to use Bragg degeneracy in position servo technology. We simulated Bragg degenerate effect under different conditions of system structure, and we proposed the optimized architecture that benefit both displacement detection accuracy and lateral displacement tolerance. Finally, experiments are applied to demonstrate the feasibility of the concept. A reference beam modulated as cylindrical wave successfully realize the the location detection technology based on Bragg degeneration.

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