Modified constant modulus algorithm for polarization-switched QPSK

Journal article, 2011

A modified constant modulus algorithm (CMA) is presented that allows polarization demultiplexing and equalization of polarizationswitched QPSK. An implementation is suggested that allows easy switching between the traditional and the modified CMA. Using numerical simulations, the suggested algorithm is shown to have similar performance as CMA has for polarization-multiplexed QPSK.