Alcatel Lucent

Alcatel-lucent USA Inc.

Andreas Bertold Leven

Noriaki Kaneda

Stefan Weisser

A method, apparatus and system for providing clock and data recovery in a receiver for receiving a high speed coherent polarization division multiplexed optical signal using a digital signal processing block including a spectral domain spatial combiner are provided.

Symbol timing recovery in polarization division multiplexed coherent optical transmission system

A method and apparatus for correcting of phase errors in a coherent optical receiver are disclosed. Embodiments include a method for calculating a phase error between in-phase and quadrature-phase component signals, multiplying the phase error by one of the component signals and subtracting the result from the other component signal to output a corrected signal.

Phase error correction in a coherent receiver

A method and apparatus providing clock and data recovery within an optical receiver using three CMA FIR filters with different group delays where filter coefficients are adapted to provide for a filter exhibiting a group delay of one sample period from which symbols for further processing are provided.

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Heroldsberg, Germany

Andreas Bertold Leven