Optical code-division multiple access using broad-band parametrically generated light

Avi Pe're, Barak Dayan, Yaron Silberberg, Asher A. Friesem

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

A novel approach for an optical direct-sequence spread spectrum is presented. It is based on the complementary processes of broad-band parametric down-conversion and up-conversion. With parametric down-conversion, a narrow-band continuous-wave (CW) optical field is transformed into two CW broad-band white-noise fields that are complex conjugates of each other. These noise fields are exploited as the key and conjugate key in optical direct-sequence spread spectrum. The inverse process of parametric up-conversion is then used for multiplying the key by the conjugate key at the receiver in order to extract the transmitted data. A complete scheme for optical code-division multiple access (OCDMA) based on this approach is presented. The salient feature of the approach presented in this paper is that an ideal white-noise key is automatically generated, leading to high-capacity versatile code-division multiple-access configurations.

Original languageEnglish
Pages (from-to)1463-1471
Number of pages9
JournalJournal of Lightwave Technology
Volume22
Issue number6
DOIs
StatePublished - Jun 2004
Externally publishedYes

Bibliographical note

Funding Information:
Manuscript received November 10, 2003; revised February 12, 2004. This work was supported in part by the Yeda Research and Development Company, Limited, The Weizmann Institute of Science, Rehovot, Israel.

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