Study of Position Servo for Volume Holographic Disc by Using Bragg Degeneracy
碩士 === 國立中央大學 === 光電科學與工程學系 === 104 === 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 acc...
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| Format: | Others |
| Language: | zh-TW |
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2016
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| Online Access: | http://ndltd.ncl.edu.tw/handle/8fn9q9 |
| Summary: | 碩士 === 國立中央大學 === 光電科學與工程學系 === 104 === 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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