Title :
Crosstalk in a metro-scale ring with passive optical add/drop
Author :
Feuer, Mark D. ; Lam, Cedric F. ; Lunardi, L.M. ; Woodward, Sheryl L.
Author_Institution :
AT&T Labs.-Res., Red Bank, NJ, USA
Abstract :
We find that crosstalk can severely degrade transmission in a metro-scale ring with passive optical add/drop nodes. The worst degradation is in the downstream signals, which are affected by the ASE and pattern-dependent chirp of the direct-modulated lasers attached to the ADD ports. Same channel crosstalk due to leakage through the FBG filter elements also plays a role. With appropriate add/drop design, crosstalk can be effectively suppressed, allowing penalty-free operation of an 80-km ring comprising a hub and four add/drop nodes
Keywords :
metropolitan area networks; optical crosstalk; optical fibre networks; 80 km; ADD port; ASE; FBG filter; crosstalk; directly modulated laser; metro-scale ring; optical fiber network; passive optical add/drop node; pattern-dependent chirp; Fiber gratings; Intelligent networks; Optical crosstalk; Optical filters; Optical modulation; Optical receivers; Optical transmitters; Radio access networks; Ring lasers; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE
Conference_Location :
Rio Grande
Print_ISBN :
0-7803-5947-X
DOI :
10.1109/LEOS.2000.894043
