We show that maximum likelihood sequence estimation (MLSE) permits significantly narrower optical filtering than threshold detection in high spectral efficiency systems. We consider MLSEs using one and two samples/bit, noise correlation, and exact probability densities.
© 2006 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
M. Rubsamen, P. J. Winzer, and R. Essiambre, " MLSE Receivers for Narrow-Band Optical Filtering," in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, Technical Digest (CD) (Optical Society of America, 2006), paper OWB6.
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