We demonstrate coherent demodulation of optical 8-phase shift-keying signals for the first time. Since the carrier phase is estimated accurately through digital signal processing, the system performance is highly tolerant toward the carrier phase noise.
© 2006 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.1660) Fiber optics and optical communications : Coherent communications
(060.4080) Fiber optics and optical communications : Modulation
S. Tsukamoto, K. Katoh, and K. Kikuchi, " Coherent Demodulation of Optical 8-Phase Shift-Keying Signals Using Homodyne Detection and Digital Signal Processing," in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, Technical Digest (CD) (Optical Society of America, 2006), paper OThR5.
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