Achieving a minimum signal-to-noise ratio in angularly multiplexed volume holographic optical data storage systems

Gregory P. Nordin; Praveen Asthana

doi:10.1117/12.187310

29 September 1994 Achieving a minimum signal-to-noise ratio in angularly multiplexed volume holographic optical data storage systems

Gregory P. Nordin, Praveen Asthana

Author Affiliations +

Proceedings Volume 2297, Photonics for Processors, Neural Networks, and Memories II; (1994) https://doi.org/10.1117/12.187310
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

We present an integrated analysis of the effects of optical crosstalk and electronic noise on the BER performance of angular and spatially multiplexed volume holographic data storage systems. Our results show that increasing the SLM contrast ratio beyond 30 is of limited benefit in improving the system BER, and that electronic noise in the CCD is the dominant noise source when the signal is not shot noise limited (for ideal holographic materials). In addition, we show that CCD's with 100 or more low noise output channels are needed to achieve a 1 Gbit/sec readout data rate for reasonable preamp data bandwidths of 20 MHz or less.

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Gregory P. Nordin and Praveen Asthana "Achieving a minimum signal-to-noise ratio in angularly multiplexed volume holographic optical data storage systems", Proc. SPIE 2297, Photonics for Processors, Neural Networks, and Memories II, (29 September 1994); https://doi.org/10.1117/12.187310

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