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Titolo:
Transmission performance of 10-Gb/s optical duobinary transmission systemsconsidering adjustable chirp of nonideal LiNbO3 Mach-Zehnder modulators due to applied voltage ratio and filter bandwidth
Autore:
Kim, SK; Lee, J; Jeong, J;
Indirizzi:
Korea Univ, Dept Radio Engn, Seoul 136701, South Korea Korea Univ Seoul South Korea 136701 adio Engn, Seoul 136701, South Korea
Titolo Testata:
JOURNAL OF LIGHTWAVE TECHNOLOGY
fascicolo: 4, volume: 19, anno: 2001,
pagine: 465 - 470
SICI:
0733-8724(200104)19:4<465:TPO1OD>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
STANDARD FIBER; DISPERSION; TRANSMITTER; RECEIVER;
Keywords:
chirp modulation; duobinary modulation; optical communication; propagating in dispersive media;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
--discip_EC--
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Kim, SK Korea Univ, Dept Radio Engn, Seoul 136701, South Korea Korea UnivSeoul South Korea 136701 n, Seoul 136701, South Korea
Citazione:
S.K. Kim et al., "Transmission performance of 10-Gb/s optical duobinary transmission systemsconsidering adjustable chirp of nonideal LiNbO3 Mach-Zehnder modulators due to applied voltage ratio and filter bandwidth", J LIGHTW T, 19(4), 2001, pp. 465-470

Abstract

We investigate interplay between the residual and applied chirp of opticalduobinary modulated signals in order to improve transmission performance. To find the best performance for 10-Gb/s optical duobinary transmission systems, we consider the residual chirp accompanying from the finite extinction ratio, the applied chirp adjusted by the applied voltage ratio (the chirpparameter) between two electrodes of LiNbO3 modulators, and the bandwidth of electrical low-pass filters used in duobinary transmitters. The simulation results suggest that nearly zero chirp during the mark ('1') period and large peak chirp at the middle of the space ('0') provide the best transmission performance. This zero chirp around marks and high peak chirp at the middle of each space can be controlled by the applied voltage ratio between two electrodes of modulator and the filter bandwidth, respectively.

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Documento generato il 02/04/20 alle ore 13:02:03