Electrically band-limited CSRZ signal with simple generation and large dispersion tolerance for 40-Gb/s WDM transmission systems

Author

Lee, Dong-Soo ; Lee, Man Seop ; Wen, Yang Jing ; Nirmalathas, Ampalavanapillai

Author_Institution

Sch. of Eng., Inf. & Commun. Univ., Daejeon, South Korea

Volume

15

Issue

7

fYear

2003

fDate

7/1/2003 12:00:00 AM

Firstpage

987

Lastpage

989

Abstract

We present a novel configuration for carrier-suppressed return-to-zero (CSRZ) signal generation, which only requires a single-stage Mach-Zehnder modulator in conjunction with an electrical mixer. An electrical band-limiting filter is also introduced to further reduce the spectral width of the generated CSRZ signal. The proposed scheme is potentially cost-effective, and simulation results show that the electrically band-limited CSRZ signal exhibits larger dispersion tolerance than a conventional CSRZ signal without any degradation in its nonlinearity tolerance.

Keywords

Mach-Zehnder interferometers; electro-optical modulation; mixers (circuits); optical distortion; optical fibre communication; optical fibre dispersion; wavelength division multiplexing; 40 Gbit/s; WDM transmission systems; carrier-suppressed return-to-zero signal generation; electrical band-limiting filter; electrical mixer; electrically band-limited CSRZ signal; large dispersion tolerance; larger dispersion tolerance; nonlinearity tolerance; single-stage Mach-Zehnder modulator; spectral width; Distributed power generation; Fiber nonlinear optics; Optical distortion; Optical fiber dispersion; Optical modulation; Optical receivers; Optical signal processing; Optical transmitters; Signal generators; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2003.813389

Filename

1206784