Title :
Adaptive dispersion equalisation by detecting dispersion fluctuations using PM-AM conversion
Author :
Kuwahara, S. ; Sano, A. ; Yonenaga, K. ; Miyamoto, Y. ; Yamabayashi, Y.
Author_Institution :
NTT Opt. Network Syst. Labs., Kanagawa, Japan
fDate :
10/1/1998 12:00:00 AM
Abstract :
A novel adaptive dispersion equalisation technique that detects and equalises dispersion fluctuations in transmission fibre during data transmission is proposed. This technique first detects dispersion fluctuations in the fibre by using the PM-AM conversion effect at a monitoring wavelength, and then tunes the data wavelength to equalise the fluctuation. This technique was tested by conducting a 40 Gbit/s, 8.5 ps pulse transmission experiment over 300 km of dispersion-shifted fibre, and was shown to suppress the sensitivity degradation to below 0.2 dB when the temperature of the fibre was varied between 0 and 40°C
Keywords :
adaptive equalisers; amplitude modulation; data communication; digital communication; fluctuations; optical fibre communication; optical fibre dispersion; optical modulation; phase modulation; 0 to 40 C; 300 km; 40 Gbit/s; 8.5 ps; PM-AM conversion; adaptive dispersion equalisation technique; data transmission; data wavelength tuning; dispersion fluctuations; dispersion-shifted fibre; monitoring wavelength; pulse transmission experiment; transmission fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981353
