We present two different channel models (the magnitude model and the intensity model) for a pixel-matched volume holographic data storage system that employs the 4-focal-length architecture. First, a framework to describe the channel models is developed. We evaluate the linearity of the channel models by comparing data values obtained from diffraction-limited interference with data values predicted by the channel models. The models are evaluated for linearity and equalization gain under different storage and read-back conditions, such as fill factors, apertures, and contrast ratios. Bit error rate results obtained by use of linear equalization methods in conjunction with the channel models developed are also presented. Our results suggest that the magnitude model leads to better performance when the fill factors are small, whereas the intensity model appears to be more appropriate for the high-fill-factor cases. The magnitude model, when suitable, appears to provide a storage density improvement of as great as 65%, whereas the intensity model seems capable of providing as much as 15% density gain through deconvolution. The optimum aperture for storage seems to be close to the Nyquist aperture.

© 1999 Optical Society of America

[Optical Society of America ]

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

Related Journal Articles

• Image restoration with the Viterbi algorithm (JOSAA)
• Iterative statistical approach to blind image deconvolution (JOSAA)
• Optical encryption by double-random phase encoding in the fractional Fourier domain (OL)
• Balancing Interpixel Cross Talk and Detector Noise to Optimize Areal Density in Holographic Storage Systems (AO)
• Digital Watermarking by a Holographic Technique (AO)

Related Conference Papers

• Optimal Control Law in State-Space Formalism for eXtreme Adaptive Optics
• The Application of Deconvolution to Adaptive Optics Retinal Images
• 0.5 GHz scanning rate optical delay line
• Application of Nonlinear Minimum Mean Square Error Equalization for Holographic Data Storage
• Two-Dimensional Modulation Code for Holographic Data Storage Systems