Application of Kalman filtering with a novel nearest-symbol constraint enables dynamic tracking of carrier phase and polarization state. Thereby, the proposed Kalman filter accomplishes demodulation of optical polarization- multiplexed complex modulation format signals.
© 2010 Optical Society of America
Instrumentation, Measurement, and Metrology
Original Manuscript: April 21, 2010
Revised Manuscript: June 1, 2010
Manuscript Accepted: June 2, 2010
Published: June 23, 2010
Todd Marshall, Bogdan Szafraniec, and Bernd Nebendahl, "Kalman filter carrier and polarization-state tracking," Opt. Lett. 35, 2203-2205 (2010)