Paper
10 February 2010 Experimental study of the influence of wave-front aberration on holographic data storage
Naruki Yoshida, Kensuke Akieda, Akihito Nakajima, Yosuke Takahata, Manabu Yamamoto
Author Affiliations +
Abstract
Holographic data storage (HDS) is a prospective, next-generation mass optical storage system. In HDS, wave-front aberration in the optical system causes deterioration of the reconstructed signal quality. In this study, to clarify the margin allowed for HDS drive development, the influence of aberration in the case of wave-front aberration of defocus, where the influence of image degradation is especially high, was measured in the optical system. Further, with the aim to improve the error rate, a finite impulse response (FIR) filter using LMMSE was applied to the image deteriorated by the wave-front aberration. Consequently, we confirmed that the error rate can be reduced by applying the FIR filter for each modulation code.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Naruki Yoshida, Kensuke Akieda, Akihito Nakajima, Yosuke Takahata, and Manabu Yamamoto "Experimental study of the influence of wave-front aberration on holographic data storage", Proc. SPIE 7619, Practical Holography XXIV: Materials and Applications, 76190W (10 February 2010); https://doi.org/10.1117/12.841626
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Modulation

Finite impulse response filters

Holography

Image quality

Data storage

CCD image sensors

Charge-coupled devices

Back to Top