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Titolo:
CNR characteristics of optical transmission systems employing super wide-band FM technique
Autore:
Fuse, M; Ishii, Y; Kudo, Y; Nojima, K; Kawashima, S; Morikura, S;
Indirizzi:
Matsushita Elect Ind Co Ltd, Multimedia Dev Ctr, Kadoma, Osaka 5718501, Japan Matsushita Elect Ind Co Ltd Kadoma Osaka Japan 5718501 aka 5718501, Japan Matsushita Commun Ind Co Ltd, Network Syst Dev Ctr, Yokohama, Kanagawa 2248539, Japan Matsushita Commun Ind Co Ltd Yokohama Kanagawa Japan 2248539 48539, Japan Matsushita Commun Ind Co Ltd, Osada Dev Ctr, Kadoma, Osaka 5718501, Japan Matsushita Commun Ind Co Ltd Kadoma Osaka Japan 5718501 ka 5718501, Japan
Titolo Testata:
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART I-COMMUNICATIONS
fascicolo: 7, volume: 83, anno: 2000,
pagine: 50 - 60
SICI:
8756-6621(2000)83:7<50:CCOOTS>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Keywords:
optical access networks; analog subcarrier multiplex; frequency modulation; optical heterodyne detection; CNR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
--discip_EC--
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Fuse, M Matsushita Elect Ind Co Ltd, Multimedia Dev Ctr, Kadoma, Osaka 5718501, Japan Matsushita Elect Ind Co Ltd Kadoma Osaka Japan 5718501 501, Japan
Citazione:
M. Fuse et al., "CNR characteristics of optical transmission systems employing super wide-band FM technique", ELEC C JP 1, 83(7), 2000, pp. 50-60

Abstract

We analyze and establish a CNR theory in the new optical transmission systems employing the super wideband FM technique, which realizes multichannel video distribution over optical access networks. We also report the transmission characteristics of the developed analog/digital hybrid transmission equipment. CNR characteristics are severely affected by several key factors: a remaining AM component generated in an optical heterodyne circuit, harmonic distortions of the wide-band FM signal, a remaining FM spectrum output from the FM demodulator, and the bandwidth limitation to the FM signal. Our novel CNR theory, which takes these factors into account, can effectively explain the experimental CNR characteristics. The AM 40ch/64QAM 30-carrier hybrid optical transmission equipment, with a design based on our CNR theory, has been successfully demonstrated with CNRs of more than 43 dB in all AM channels and CNRs of more than 33 dB in all 64QAM channels. (C) 2000 Scripta Technica, Electron Comm Jpn Pt 1, 83(7): 50-60, 2000.

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Documento generato il 07/04/20 alle ore 03:07:35