Optically-amplified WDM ring network incorporating channel-dropping filters

Author

Willner, A.E. ; Hwang, S.-M.

Author_Institution

Dept. of Electr. Eng.-Syst., California Univ., Los Angeles, CA, USA

Volume

6

Issue

6

fYear

1994

fDate

6/1/1994 12:00:00 AM

Firstpage

760

Lastpage

763

Abstract

We analyze the critical parameters in an optically-amplified WDM ring network. We find that a ring can accommodate 27 nodes when incorporating an EDFA and a channel-dropping filter in each node, a significant advance over nonamplified rings. We compare several node configurations, and find that the sequence of an EDFA followed by an optical tap and a channel dropping filter provides the highest performance for a wide range in system variables including input signal power, inter-node link loss and its variability, power-tapping ratio, and small-signal gain. Limited network modularity can he achieved.<>

Keywords

erbium; fibre lasers; optical fibres; optical filters; optical links; wavelength division multiplexing; EDFA; Er-doped fibre amplifiers; channel-dropping filters; critical parameters; input signal power; inter-node link loss; node configurations; nonamplified rings; optical tap; optically-amplified WDM ring network; power-tapping ratio; small-signal gain; system variables; Erbium-doped fiber amplifier; Optical fiber filters; Optical fiber losses; Optical fiber networks; Optical filters; Optical receivers; Optical transmitters; Stimulated emission; WDM networks; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.300186

Filename

300186