Investigations on volume holographic multi-channel optical correlator

• Main Authors: Sheng-Chi Liu, 劉晟齊
• Other Authors: Shiuan-Huei Lin
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/h84c8r

碩士 === 國立交通大學 === 電子物理系所 === 96 === In this thesis, we investigate volume holographic multi-channel optical correlator and its applications. At first, we analyze the properties of volume hologram optical correlator on optical pattern recognition through theoretical and experimental approaches. The results show that the signal-to-noise ratio of this optical system is significantly higher than traditional Vander Lugt correlator. Hence we construct multi-channel system in volume hologram optical correlator. In the experiment of multi-channel system, we record five hundred image in the volume hologram by using the angular multiplexing technique, and perform optical pattern recognition. Finally, we use volume holographic multi-channel optical correlator to construct an optical fingerprint identification system.