DocumentCode
1259803
Title
RZ versus NRZ in nonlinear WDM systems
Author
Forghieri, Fabrizio ; Prucnal, P.R. ; Tkach, R.W. ; Chraplyvy, A.R.
Author_Institution
Crawford Hill Lab., AT&T Bell Labs., Holmdel, NJ, USA
Volume
9
Issue
7
fYear
1997
fDate
7/1/1997 12:00:00 AM
Firstpage
1035
Lastpage
1037
Abstract
The issue of what is the best duty cycle in an intensity-modulated direct-detection optical system keeps resurfacing. Here, this issue is addressed from a transmission point of view for a wavelength-division-multiplexed (WDM) system. It is shown that nonreturn-to-zero (NRZ) is more robust to optical fiber transmission impairments for both already deployed systems and new systems in which the dispersion map is a design parameter.
Keywords
optical fibre communication; optical fibre dispersion; optical modulation; optical solitons; wavelength division multiplexing; NRZ; RZ; best duty cycle; design parameter; dispersion map; intensity-modulated direct-detection optical system; nonlinear WDM systems; nonreturn-to-zero; optical fiber transmission impairments robustness; return-to-zero; transmission; wavelength-division-multiplexed; Chromatic dispersion; Laboratories; Optical fiber communication; Optical fiber dispersion; Optical pulses; Optical receivers; Optical signal processing; Pulse modulation; Solitons; Wavelength division multiplexing;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/68.593391
Filename
593391
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