Performance Limitations of Subcarrier Multiplexed WDM Signal Transmissions Using QAM Modulation

Author

Kim, Kyoungsoo ; Lee, Jaehoon ; Jeong, Jichai

Author_Institution

Dept. of Radio Eng., Korea Univ., Seoul, South Korea

Volume

27

Issue

18

fYear

2009

Firstpage

4105

Lastpage

4111

Abstract

We theoretically investigate the performance limitations of subcarrier multiplexed (SCM) wavelength-division-multiplexing (WDM) systems using optical double-sideband (DSB) modulated, 16-quadrature amplitude-modulated (QAM) signals. The performance limitations are investigated using crosstalk power and SCM channel spacing for various transmission conditions, including impairment factors such as dispersion and fiber nonlinearities for a single wavelength channel first. The effects of WDM channel spacing on SCM systems with multiwavelength channels are also evaluated via the calculated bit error rate (BER) performance, based on the performance limitations found in the single-wavelength simulation. This enables us to provide guidelines for the design of SCM/WDM systems for fiber-to-the-home (FTTH) network in WDM-passive optical network (PON) architecture, based on the performance limitations.

Keywords

error statistics; optical fibre networks; quadrature amplitude modulation; wavelength division multiplexing; BER; QAM modulation; WDM signal transmissions; bit error rate; channel spacing; crosstalk power; fiber-to-the-home network; multiwavelength channels; optical double-sideband modulation; passive optical network; quadrature amplitude modulation; subcarrier multiplexed; wavelength-division multiplexing; Optical DSB; QAM; WDM; subcarrier multiplexing;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2009.2022482

Filename

4912352