We present three novel phase detector structures for a 112 Gbit/s CP-QPSK system, which provide, even in the presence of DGD, valid tracking information for a fully digital clock recovery.
© 2010 The Optical Society
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2340) Fiber optics and optical communications : Fiber optics components
C. Hebebrand, A. Napoli, A. Bianciotto, S. Calabro, B. Spinnler, and W. Rosenkranz, "Clock Recovery with DGD-Tolerant Phase Detector for CP-QPSK Receivers," in Advanced Photonics & Renewable Energy, OSA Technical Digest (CD) (Optical Society of America, 2010), paper SPWB3.
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