Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/2272
標題: 應用全像光學元件之同軸全像儲存系統的研究
Study of Collinear Holographic Storage System with Holographic Optical Element
作者: 蔡易倫
Tsai, Yi-Lun
關鍵字: collinear holographic data storage system;同軸式全像儲存系統;holographic optical element;binary optic;全像光學元件;二元光學
出版社: 機械工程學系所
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摘要: 
本研究以全像儲存系統(holographic data storage system, HDSS)之光路架構為基礎,設計一同軸式(collinear)全像儲存系統及其所需之全像光學元件。在光路架構的構想係參考Optware公司之同軸式全像儲存系統並嘗試以積體化為目的,設計一新式的全像儲存系統。研究中先以光學模擬軟體對儲存系統進行設計,過程中加入一片全像光學元件(holographic optical element, HOE)於系統中,光偵測器由全像光學元件的正一階繞射光取得聚焦誤差訊號,而CCD則由負一階繞射光取得儲存的影像圖形。此一方法可以減少光路系統中的元件數量並且簡化儲存系統之架構。
後續再以二元光學(binary optics)的方法近似全像光學元件的相位分佈,製作上則由微影(photolithography)和蝕刻(etching)等方式完成之,再檢測其光學效率是否達到設計的需求。最後則架設該光路系統,並驗証此一積體化同軸式全像儲存系統的成效。

Based on the optical configuration of the holographic data storage system (HDSS), this study is to design a collinear HDSS and the necessary holographic optical element. The concept of optical configuration is in reference to the collinear HDSS of the Optware Corporation with further attempt to realize an integrated collinear HDSS design. In the study, the optical simulation software was first adopted to create the storage system. By adding a holographic optical element (HOE) to the system, it was possible for the photo detector to receive the focusing error signal (FES) from the HOE in the positive-one diffraction order and for the CCD to receive the image pattern of the stored data from the same HOE in the negative-one diffraction order. This is the way to reduce the number of optical components and simplify the configuration of the storage system.
Subsequently, the phase distribution of holographic optical element was approximated by using the method of binary optics. The manufacturing was accomplished by using photolithography, etching, and so forth. The optical efficiency was then measured to see if the requirements of the design were met. Finally, the optical system was set up to examine the effect of such an integrated collinear HDSS design.
URI: http://hdl.handle.net/11455/2272
其他識別: U0005-1808200900534400
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