Abstract

A high-resolution and multilevel designed reference pattern (DRP) is presented for improvement of both light utilization efficiency and the signal-to-noise ratio (SNR) of reconstructed images in coaxial holographic data storage. With a DRP, the desired Fourier power spectrum of a reference beam is obtained. Numerical and experimental results show that the DRP increases the SNR compared with that of a random phase mask (RPM). Moreover, the light utilization efficiency of the DRP is higher than that of a high-resolution RPM. In addition, the effect of the phase level and the pixel pitch of DRPs on the SNR and the light utilization efficiency are investigated.

© 2014 Optical Society of America

Binary computer-generated-hologram-based holographic data storage

Naru Yoneda, Yusuke Saita, and Takanori Nomura
Appl. Opt. 58(12) 3083-3090 (2019)

Linear phase encoding for holographic data storage with a single phase-only spatial light modulator

Teruyoshi Nobukawa and Takanori Nomura
Appl. Opt. 55(10) 2565-2573 (2016)

Orthogonal reference pattern multiplexing for collinear holographic data storage

Liangcai Cao, Jinqiu Liu, Jianhua Li, Qingsheng He, and Guofan Jin
Appl. Opt. 53(1) 1-8 (2014)

Design method of input phase mask to improve light use efficiency and reconstructed image quality for holographic memory

Yusuke Saita and Takanori Nomura
Appl. Opt. 53(19) 4136-4140 (2014)

Improved performance in coaxial holographic data recording

Kenji Tanaka, Masaaki Hara, Kazutatsu Tokuyama, Kazuyuki Hirooka, Koji Ishioka, Atsushi Fukumoto, and Kenjiro Watanabe
Opt. Express 15(24) 16196-16209 (2007)