Journal article
Chromatic Dispersion Estimation in Digital Coherent Receivers
Polarization-diverse coherent demodulation allows to compensate large values of accumulated linear distortion by digital signal processing. In particular, in uncompensated links without optical dispersion compensation, the parameter of the residual chromatic dispersion (CD) is vital to set the according digital filtering function.
We present different non-data-aided (blind) CD estimation methods for single-carrier transmission under implementation constraint conditions such as bandwidth limitation and sampling rate. The estimation performance for various modulation formats is compared with respect to precision and robustness for a wide range of combined channel impairments.
| Language: | English |
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| Publisher: | IEEE |
| Year: | 2011 |
| Pages: | 1627-1637 |
| ISSN: | 15582213 and 07338724 |
| Types: | Journal article |
| DOI: | 10.1109/JLT.2011.2145357 |
| ORCIDs: | Tafur Monroy, Idelfonso |
Cost function Estimation FIR filters Filter banks Finite impulse response filter Matched filters Optical filters accumulated linear distortion bandwidth limitation channel impairments chromatic dispersion estimation demodulation digital coherent receiver digital coherent receivers digital filtering function digital signal processing light polarisation modulation formats optical dispersion optical dispersion compensation optical filters optical information processing optical performance monitoring (OPM) optical receivers polarization-diverse coherent demodulation quadrature phase shift keying sampling rate single-carrier transmission
