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Proceedings Paper

Partial response modulation codes for electron trapping optical memory (ETOM)
Author(s): Steven W. McLaughlin; A. Robert Calderbank; Rajiv Laroia; John M. Gerpheide; Amit K. Jain
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Paper Abstract

We consider the problem of coding for a recording channel. Traditional magnetic or optical channels employ saturation recording, where the input to the channel is a two-level waveform. New optical recording channels have been developed that support unsaturated, M-ary (M >= 3) signal levels. In this paper we consider the analysis and design of partial response codes for these channels. Comparisons are made with M-ary runlength limited codes. The partial response codes presented here achieve the largest known storage density and achieve a coding gain of 3-6 dB over M-ary runlength limited codes.

Paper Details

Date Published: 8 September 1995
PDF: 9 pages
Proc. SPIE 2514, Optical Data Storage '95, (8 September 1995); doi: 10.1117/12.218708
Show Author Affiliations
Steven W. McLaughlin, Rochester Institute of Technology (United States)
A. Robert Calderbank, AT&T Bell Labs. (United States)
Rajiv Laroia, AT&T Bell Labs. (United States)
John M. Gerpheide, Optex Communications Corp. (United States)
Amit K. Jain, Optex Communications Corp. (United States)

Published in SPIE Proceedings Vol. 2514:
Optical Data Storage '95
Gordon R. Knight; Hiroshi Ooki; Yuan-Sheng Tyan, Editor(s)

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