Title :
Receiver analysis for synchronous coherent optical fiber transmission systems
Author :
Hodgkinson, T.G.
Author_Institution :
British Telecom Research Laboratories, Martlesham Heath, Ipswich, Suffolk, UK
fDate :
4/1/1987 12:00:00 AM
Abstract :
A receiver sensitivity expression applicable for both PSK homodyne and heterodyne optical fiber transmission systems is derived taking account of polarization misalignment, reduced modulation depth, preamplifier thermal noise, power coupling ratio of the fiber coupler, local oscillator excess intensity noise, and reference phase errors. From a comparison of recent studies on system performance degradation due to laser phase noise a generalized expression relating beat linewidth to phase error variance for pilot carrier and Costas phase-locked-loop receivers is defined.
Keywords :
Heterodyning; Homodyne detection; Optical fiber receivers; Phase-shift keying; Noise reduction; Optical coupling; Optical fiber polarization; Optical fibers; Optical noise; Optical receivers; Phase modulation; Phase noise; Phase shift keying; Signal to noise ratio;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.1987.1075536
