Title :
Pilot tones in networks with nonlinear elements
Author :
Kloch, A. ; Danielsen, S.L. ; Mikkelsen, B. ; Stubkjaer, K.E. ; Schilling, M. ; Wunstel, K. ; Idler, W.
Author_Institution :
Dept. of Electromagn. Syst., Tech. Univ., Lyngby, Denmark
fDate :
3/1/1998 12:00:00 AM
Abstract :
Transmission of pilot tones for supervision and management of all-optical networks deploying nonlinear elements, like interferometric wavelength converters, is experimentally investigated. Experiments show that the pilot tone is affected due to the converters nonlinear transfer function. A novel scheme to block and reinsert pilot tones using an all-active interferometric Mach-Zehnder wavelength converter is demonstrated experimentally in a 10-Gb/s all-optical wavelength conversion experiment, where 30-dB suppression of a /spl sim/100-kHz pilot tone is obtained.
Keywords :
Mach-Zehnder interferometers; optical fibre networks; optical frequency conversion; optical transfer function; wavelength division multiplexing; 10 Gbit/s; WDM; all-active interferometric Mach-Zehnder wavelength converter; all-optical networks; all-optical wavelength conversion experiment; interferometric wavelength converters; management; nonlinear elements; nonlinear transfer function; pilot tones; supervision; Amplitude modulation; Bit error rate; Frequency conversion; Intelligent networks; Optical devices; Optical interferometry; Optical modulation; Optical wavelength conversion; Transfer functions; Wavelength converters;
Journal_Title :
Photonics Technology Letters, IEEE
