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

Volume

34

Issue

20

fYear

1998

fDate

10/1/1998 12:00:00 AM

Firstpage

1956

Lastpage

1958

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;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:19981353

Filename

722051