Title :
Coherent optical-fibre subscriber line
Author :
Bachus, E.-J. ; Braun, Ralf-Peter ; Eutin, W. ; Gro¿?mann, E. ; Foisel, H. ; Heimes, K. ; Strebel, B.
Author_Institution :
Heinrich-Hertz-Institut fÿr Nachrichtentechnik Berlin GmbH, Berlin, West Germany
Abstract :
A laboratory bidirectional four-channel broadband coherent-type fibre-optic subscriber line (3.5 km) is reported. The carriers are centre-frequency-stabilised by a `heterodyne spectroscope¿ and demultiplexed by a tunable heterodyne receiver. In a very special state of the system, BER increases for nonlinear interaction between two counterpropagating narrowband lightwaves because of Brillouin scattering.
Keywords :
optical communication; optical fibres; BER; Brillouin scattering; bidirectional four-channel broadband coherent-type fibre-optic subscriber line; centre frequency stabilisation; coherent optical fibre subscriber line; counterpropagating narrowband lightwaves; demultiplexing; heterodyne spectroscope; tunable heterodyne receiver;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850849
