Title :
Monitoring optical WDM-networks by using statistical methods
Author :
Dorren, H.J.S. ; Van de Bergh, M.P.H. ; van der Tol, J.J.G.M.
Author_Institution :
Dept. of Electr. Eng., Eindhoven Univ. of Technol., Netherlands
Abstract :
A novel method to monitor the performance of WDM channels in an optical network is presented. From the photo-diode current of a detected optical signal, an amplitude histogram is generated; the probability density function (PDF). By analysing the PDF, information is obtained about several performance parameters, including the optical power as well as the noise-levels on the bit-levels of the channels. A wavelength dependent attenuator has to be used to extract these performance parameters uniquely. Experimental evidence demonstrates that the method can be used to analyse at least three WDM channels simultaneously.
Keywords :
attenuators; monitoring; optical fibre networks; optical noise; optical signal detection; photodiodes; probability; statistical analysis; telecommunication channels; wavelength division multiplexing; Gaussian model; PDF; WDM channels; amplitude histogram; bit-levels; data modulation; experiment; noise-levels; optical WDM-network monitoring; optical power; optical signal detection; performance monitoring; performance parameters; photo-diode current; probability density function; statistical methods; wavelength dependent attenuator; Histograms; Monitoring; Optical attenuators; Optical detectors; Optical fiber networks; Probability density function; Signal detection; Signal generators; Statistical analysis; Wavelength division multiplexing;
Conference_Titel :
Communications, 1999. APCC/OECC '99. Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference
Conference_Location :
Beijing, China
Print_ISBN :
7-5635-0402-8
DOI :
10.1109/APCC.1999.824527
