Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Multilevel signaling for increasing the reach of 10 Gb/s lightwave systems
Autore:
Walklin, S; Conradi, J;
Indirizzi:
Telecommun Res Labs, Edmonton, AB T5K 2P7, Canada Telecommun Res Labs Edmonton AB Canada T5K 2P7 monton, AB T5K 2P7, Canada
Titolo Testata:
JOURNAL OF LIGHTWAVE TECHNOLOGY
fascicolo: 11, volume: 17, anno: 1999,
pagine: 2235 - 2248
SICI:
0733-8724(199911)17:11<2235:MSFITR>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHROMATIC DISPERSION; FIBER TRANSMISSION; DUOBINARY TRANSMISSION; INTENSITY MODULATION; OPTICAL MODULATOR; ADJUSTABLE CHIRP; NOISE CONVERSION; STANDARD FIBER; PERFORMANCE; RECEIVER;
Keywords:
bandwidth compression; optical fiber communication; optical modulation/demodulation; optical propagation in dispersive media;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
--discip_EC--
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Walklin, S Telecommun Res Labs, Edmonton, AB T5K 2P7, Canada Telecommun Res Labs Edmonton AB Canada T5K 2P7 T5K 2P7, Canada
Citazione:
S. Walklin e J. Conradi, "Multilevel signaling for increasing the reach of 10 Gb/s lightwave systems", J LIGHTW T, 17(11), 1999, pp. 2235-2248

Abstract

Polybinary, optical amplitude modulated phase shift keying (AM-PSK) polybinary, M-ary amplitude shift keying (ASK), and polyquaternary signaling schemes operating at 10 Gb/s are investigated in 1550-nm lightwave systems operating over standard, single-mode fiber. The premise for exploring these signal types is that they concentrate power at frequencies closer to the optical carrier where phase distortion of the optical field from chromatic dispersion is less severe. Issues such as modulator chirp, optimal level spacingin a 4-ary ASK signal, and phase modulated to amplitude modulated (PM-AM) noise conversion from a nonzero laser linewidth are studied. It is found that higher order polybinary signals do not offer an improvement in dispersion tolerance over a duobinary signal. 4-ary ASK is demonstrated to increase the dispersion-limited distance to 225 km experimentally and 350 km throughsimulation, but at the expense of a similar to 8 dB degradation in receiver sensitivity due to the increased number of levels and the signal dependence of signal-spontaneous beat noise. Furthermore, the linewidth requirementfor a 4-ary ASK signal is less than 1 MHz in order to minimize the impact-of PM-AM relative intensity noise (RIN) when transmitting over 200-300 km.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/08/20 alle ore 00:06:09