Title :
Bandwidth-limiting effects in coherent optical communications systems based on polarisation-preserving fibres
Author_Institution :
Technical University of Denmark, Electromagnetics Institute, Lyngby, Denmark
Abstract :
Interference effects caused by small polarisation misalignments are shown to produce a significant nonlinear distortion of a coherent analogue FM signal transmitted via polarisation-preserving fibres. High-quality transmission of a 100 MHz sinusoidal signal over 10 km of fibre requires alignment accuracies of output and input polarisers better than 2.5 degrees.
Keywords :
frequency modulation; light polarisation; optical communication; optical fibres; 100 MHz sinusoidal signal; alignment accuracies; bandwidth limiting effects; coherent analogue FM signal; coherent optical communications systems; nonlinear distortion; polarisation misalignments; polarisation preserving fibres;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840279
