Title :
Influence of IF-filtering on bit error rate floor in coherent optical DPSK-systems
Author :
Patzak, E. ; Meissner, P.
Author_Institution :
Heinrich-Hertz Institut f¿¿r Nachrichtentechnik Berlin GmbH, Berlin, West Germany
fDate :
10/1/1988 12:00:00 AM
Abstract :
We investigate the influence of IF-filtering on the bit error rate floor in optical DPSK-systems; this influence is usually neglected. We show that the IF-filtering leads to a reduction of the error rate floor, so that the linewidth requirements are reduced by a factor of 0.68.
Keywords :
optical links; optical modulation; phase shift keying; signal detection; spatial filters; IF-filtering; bit error rate floor; coherent optical DPSK-systems; delay phase shift keying;
Journal_Title :
Optoelectronics, IEE Proceedings J
DOI :
10.1049/ip-j.1988.0066
