Title :
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
fDate :
6/1/1994 12:00:00 AM
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;
Journal_Title :
Photonics Technology Letters, IEEE
