The Impact of Polarization-Dependent Loss on the Constant Modulus Algorithm for Varying Number of Fiber Spans Based on an Outage Criterion
Paper in proceeding, 2011
We investigate the effect of polarization-dependent loss (PDL) on the constant modulus algorithm (CMA) in 4-QAM and 16-QAM polarization multiplexed (PolMux) systems with varying number of fiber spans and different PDL values. To quantify this effect, outage probability is introduced as the probability of having a signal-to-noise ratio (SNR) degradation smaller than 1 dB 99% of the time. We observe that by increasing the number of fiber spans, the SNR penalty for CMA reaches a limiting value. Moreover, in the 16-QAM multi-span case, the effect of PDL on CMA depends on the amount of PDL, while for 4-QAM, the effect of PDL on CMA is insensitive to the amount of PDL. These results will provide guidelines for designing systems and adjusting transmission power.
Coherent optical communication
blind equalization
constant modulus algorithm
polarization-dependent loss
Author
M. Tavan
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Henk Wymeersch
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Proc. Wireless and Optical Communications Conference (WOCC)
5872281
978-145770454-3 (ISBN)
Areas of Advance
Information and Communication Technology
Subject Categories
Telecommunications
DOI
10.1109/WOCC.2011.5872281
ISBN
978-145770454-3