Tilt measurement and compensation algorithm for holographic data storage with optimized quadratic windows. (28th July 2016)

• Record Type: Journal Article
• Authors: Son, Kyungchan; Lim, Sung-Yong; Lee, Jae-seong; Jeong, Wooyoung; Yang, Hyunseok
• Is Part Of: Japanese journal of applied physics. Volume 55(2016.)Supplement 9
• Publication Date: 2016-07-28
• Subjects: Physics -- Periodicals; 621.05
• DOI: 10.7567/JJAP.55.09SA02
• Languages: English
• ISSNs: 0021-4922

Abstract

Abstract: In holographic data storage, tilt is one of the critical disturbances. There are two types of tilt: tangential and radial. In real systems, tangential and radial tilt occur simultaneously. Thus, it is difficult to measure and compensate for tilt. In this study, using a quadratic window, which compares the intensity of a certain area, a tilt error signal was generated and compensated for with the proposed algorithm. The compensated image obtained satisfied a 0.3 dB tolerance.