亂相編碼用於體積全像光學儲存

Random Phase Encoding in Volume Holographic Optical Storage

孫慶成 ； 蘇威佳

《光學工程》 92期 (2005/12) Pp. 43-51

https://doi.org/10.30011/OE.200512.0009

摘要

在本文中，我們提出並驗證一個以亂相編碼與角度多工為基礎的全像儲存與保密系統。我們利用一片毛玻璃將影像做保密性的編碼儲存，同時也利用毛玻璃做影像的多工儲存。此外，這片毛玻璃也是將訊號解碼還原的關鍵。我們將分析毛玻璃在解碼時的橫向位移容忍度並與實驗結果相比較。

關鍵字

亂相編碼 ； 體積全像 ； 光學儲存

並列摘要

In this article, we proposed a holographic system of storage and encryption based on random phase-coded and angular multiplexing. We used a ground glass not only to perform encrypted storage, but also to multiplex holographic storage. Besides, the ground glass serves as the unique key to decrypt the stored signal in the readout process. We theoretically and experimentally demonstrated the random phase encoding and decoding in holographic storage. The shift-tolerance of the ground glass was analyzed.

並列關鍵字

random phase-coded ； holographic storage