Partial response precoding for parallel-readout optical memories

Brita H. Olson, Sadik Esener

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The data density that can be resolved in optical memories is limited by the inherent band-limited nature of optical systems. We show how a precoding technique used in serial communications, called partial response precoding, can be applied to parallel readout optical memories to precompensate for the spatial data broadening that occurs as result of this band limiting. We experimentally demonstrate a factor-of-15 improvement in average worstcase contrast ratio and an order-of-magnitude improvement in average contrast ratio. Over 50% more area was needed to achieve the same contrast ratio in a system without precoding.

Original languageEnglish (US)
Pages (from-to)661-663
Number of pages3
JournalOptics Letters
Volume19
Issue number9
DOIs
StatePublished - May 1 1994
Externally publishedYes

Fingerprint

readout
communication

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Partial response precoding for parallel-readout optical memories. / Olson, Brita H.; Esener, Sadik.

In: Optics Letters, Vol. 19, No. 9, 01.05.1994, p. 661-663.

Research output: Contribution to journalArticle

@article{e93d3986dd8d4319a68cab28f7b4031f,
title = "Partial response precoding for parallel-readout optical memories",
abstract = "The data density that can be resolved in optical memories is limited by the inherent band-limited nature of optical systems. We show how a precoding technique used in serial communications, called partial response precoding, can be applied to parallel readout optical memories to precompensate for the spatial data broadening that occurs as result of this band limiting. We experimentally demonstrate a factor-of-15 improvement in average worstcase contrast ratio and an order-of-magnitude improvement in average contrast ratio. Over 50{\%} more area was needed to achieve the same contrast ratio in a system without precoding.",
author = "Olson, {Brita H.} and Sadik Esener",
year = "1994",
month = "5",
day = "1",
doi = "10.1364/OL.19.000661",
language = "English (US)",
volume = "19",
pages = "661--663",
journal = "Optics Letters",
issn = "0146-9592",
publisher = "The Optical Society",
number = "9",

}

TY - JOUR

T1 - Partial response precoding for parallel-readout optical memories

AU - Olson, Brita H.

AU - Esener, Sadik

PY - 1994/5/1

Y1 - 1994/5/1

N2 - The data density that can be resolved in optical memories is limited by the inherent band-limited nature of optical systems. We show how a precoding technique used in serial communications, called partial response precoding, can be applied to parallel readout optical memories to precompensate for the spatial data broadening that occurs as result of this band limiting. We experimentally demonstrate a factor-of-15 improvement in average worstcase contrast ratio and an order-of-magnitude improvement in average contrast ratio. Over 50% more area was needed to achieve the same contrast ratio in a system without precoding.

AB - The data density that can be resolved in optical memories is limited by the inherent band-limited nature of optical systems. We show how a precoding technique used in serial communications, called partial response precoding, can be applied to parallel readout optical memories to precompensate for the spatial data broadening that occurs as result of this band limiting. We experimentally demonstrate a factor-of-15 improvement in average worstcase contrast ratio and an order-of-magnitude improvement in average contrast ratio. Over 50% more area was needed to achieve the same contrast ratio in a system without precoding.

UR - http://www.scopus.com/inward/record.url?scp=0028441756&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028441756&partnerID=8YFLogxK

U2 - 10.1364/OL.19.000661

DO - 10.1364/OL.19.000661

M3 - Article

AN - SCOPUS:0028441756

VL - 19

SP - 661

EP - 663

JO - Optics Letters

JF - Optics Letters

SN - 0146-9592

IS - 9

ER -