The study of shifting-multiplexed volume holographic optical disc with a spherical reference wave

• Main Authors: Chi-Yu Wu, 吳其昱
• Other Authors: Ching - Cherng Sun
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/81625264528505791522

碩士 === 國立中央大學 === 光電科學研究所 === 94 === In this thesis we investigate a shifting-multiplexed volume holographic optical system with a spherical reference wave. To provide an overview of the characterization of the volume holographic optical disc, we first calculate the spatial selectivity of the system during reading process. The following we quantitatively examine the crosstalk noise by analyzing both signal to noise ratio and bit error rate, where making use of the spatial light modulator as the object signal. We have applied VOHIL and Rayleigh-Sommerfeld formula to simulate the diffracted pattern from a volume holographic optical disc with spherical reference wave. The shift-compensated system is proved to be free from inter-pixel crosstalk such that bit error rate can be reduced dramatically, making the realization of the volume holographic optical storage system possible.