title: Method of compensating for pixel migration in volume holographic optical disc (VHOD).
abstract: Volume holographic optical disc (VHOD) technology is simpler than the angular multiplexing holographic system. However, disc rotation usually causes pixel migration, thus reducing signal quality. This study proposes a special geometrical arrangement to counteract pixel migration. Using paraxial approximation analysis, an optimal geometrical distance ratio, K, is calculated to compensate for pixel migration and improve image quality during disc rotation. The results of approximation analysis are confirmed by both simulation and experimental results.
authors.affiliation: Department of Optics and Photonics, National Central University, Chung-Li 32001, Taiwan.
authors.forename: Yeh-Wei
authors.initials: YW
authors.lastname: Yu
authors.forename: Chih-Yuan
authors.initials: CY
authors.lastname: Cheng
authors.forename: Tun-Chien
authors.initials: TC
authors.lastname: Teng
authors.forename: Cheng-Hsien
authors.initials: CH
authors.lastname: Chen
authors.forename: Shiuan-Huei
authors.initials: SH
authors.lastname: Lin
authors.forename: Bo-Rong
authors.initials: BR
authors.lastname: Wu
authors.forename: Che-Chih
authors.initials: CC
authors.lastname: Hsu
authors.forename: Yi-Jiun
authors.initials: YJ
authors.lastname: Chen
authors.forename: Xuan-Hao
authors.initials: XH
authors.lastname: Lee
authors.forename: Chi-Yu
authors.initials: CY
authors.lastname: Wu
authors.forename: Ching-Cherng
authors.initials: CC
authors.lastname: Sun