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	Novel phase detection method for a holographic data storage system using two interferograms
	He, Mingzhao ; Cao, Liangcai ; Tan, Qiaofeng ; He, Qingsheng ; Jin, Guofan
	2010-10-12 ; 2010-10-12
关键词	hologram recording and readout methods holographic interferometry optical storage systems phase-shifting interferometry ONLY OPTICAL ENCRYPTION SHIFTING INTERFEROMETRY IMAGE ENCRYPTION REFERENCE WAVES DISK TILT MODULATION MEMORIES CAPACITY SIGNAL PLANE Optics
中文摘要	Data page phase modulation is attracting interest as an alternative to amplitude modulation in holographic data storage for a homogenized Fourier spectrum. The problem with phase modulation is in the reconstruction of the pure phase information. This paper proposes a simple yet effective phase detection method for a phase-modulated holographic data storage system. An extra detection beam is introduced to interfere with the reconstructed signal beam at the CCD plane for phase detection. To eliminate the stationary noise and beam non-uniformity in the holographic data storage system, a new algorithm using two interferograms is proposed to obtain clear detection results. This detection method is suitable for a holographic data storage system because the detection beam does not penetrate the recording medium and therefore does not limit storage capacity compared with other detection methods. Simulation and experimental results are presented to confirm this method.
语种	英语 ; 英语
出版者	IOP PUBLISHING LTD ; BRISTOL ; DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80198]
专题	清华大学
推荐引用方式 GB/T 7714	He, Mingzhao,Cao, Liangcai,Tan, Qiaofeng,et al. Novel phase detection method for a holographic data storage system using two interferograms[J],2010, 2010.
APA	He, Mingzhao,Cao, Liangcai,Tan, Qiaofeng,He, Qingsheng,&Jin, Guofan.(2010).Novel phase detection method for a holographic data storage system using two interferograms..
MLA	He, Mingzhao,et al."Novel phase detection method for a holographic data storage system using two interferograms".(2010).

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