Improved filter concatenation tolerance using duobinary modulation format for metropolitan area networks

Author

Zacharopoulos, Ioannis ; Tzanakaki, Anna ; Parcharidou, Despoina ; Tomkos, Ioannis

Author_Institution

Opt. Commun. Syst. & Networks group, Athens Inf. Technol. Center, Greece

Volume

2

fYear

2003

fDate

27-28 Oct. 2003

Firstpage

680

Abstract

In this paper a simulation study of a metropolitan area networks (MAN) scenario is carried out. The MAN is incorporating a number of nodes with optical add-drop-multiplexers (OADMs) each one incorporating two filters. The work focuses on the filter concatenation using standard nonreturn-to-zero (NRZ) and DBR modulation formats and compares their system performance. The filters used in the simulations were 3^rd order Bessel (AWG transfer function) and Butterworth (TTF transfer function) filters. Results are taken for 10 Gb/s systems with 100, 50 and 25 GHz channel spacing. The 3 dB filter bandwidth in all cases is assumed to be 65% of the channel spacing, which is consistent with commercially available components.

Keywords

channel spacing; metropolitan area networks; optical communication equipment; optical filters; optical modulation; optical transfer function; simulation; telecommunication channels; tolerance analysis; wavelength division multiplexing; 10 Gbit/s; 100 GHz; 25 GHz; AWG transfer function; Bessel filter; Butterworth filter; DBR; NRZ modulation format; OADM; TTF transfer function; channel spacing; duobinary modulation format; filter concatenation tolerance; metropolitan area network; optical add-drop-multiplexer; standard nonreturn-to-zero modulation format; Bandwidth; Channel spacing; Distributed Bragg reflectors; Metropolitan area networks; Optical add-drop multiplexers; Optical filters; Optical modulation; Optical signal processing; System performance; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2003. LEOS 2003. The 16th Annual Meeting of the IEEE

ISSN

1092-8081

Print_ISBN

0-7803-7888-1

Type

conf

DOI

10.1109/LEOS.2003.1252983

Filename

1252983