Increase of signal-to-noise ratio of a collinear holographic storage system with reference modulated by a ring lens array

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50985

Title:	Increase of signal-to-noise ratio of a collinear holographic storage system with reference modulated by a ring lens array
Authors:	Yu,YW;Chen,CY;Sun,CC
Contributors:	光電科學與工程學系
Keywords:	VOLUME HOLOGRAMS;SPREAD FUNCTION
Date:	2010
Issue Date:	2012-03-27 18:14:37 (UTC+8)
Publisher:	國立中央大學
Abstract:	We propose an approach of a reference modulation in a collinear holographic storage system to increase the signal-to-noise ratio (SNR). We derive a solution that shows that the point-spread function is related to the autocorrelation function of the reference pattern times a defocusing phase term. Accordingly, the lens-array phase modulation is proposed and demonstrated theoretically. The SNR of the system can be dramatically enhanced to 63.2, rather than 2.3 in the traditional approach. (C) 2010 Optical Society of America
Relation:	OPTICS LETTERS
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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