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Optical Engineering

Significantly enhanced fiber optic code-division multiple-access system using a novel optical decoder with an AND-gate logic element
Author(s): Tae-Gu Kang; Young-Wan Choi
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Paper Abstract

We propose a novel optical decoder for a fiber-optic code-division multiple-access communication system. In particular, we discuss a means of reducing the effective multiple-access interference signal by inserting an optical hard limiter (optical thyristor). The optical decoder employs an AND gate logic element (AGLE) composed of a 1×M splitter, optical delay lines, an M×1 combiner, and the optical hard limiter. It is found that the AGLE suppresses the interference signal, so that the autocorrelation sidelobe and the cross-correlation peaks can be fully eliminated for any two users.

Paper Details

Date Published: 1 June 2006
PDF: 6 pages
Opt. Eng. 45(6) 065002 doi: 10.1117/1.2212829
Published in: Optical Engineering Volume 45, Issue 6
Show Author Affiliations
Tae-Gu Kang, Chung-Ang Univ. (South Korea)
Young-Wan Choi, Chung-Ang Univ. (South Korea)

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