Abstract
A fast and low-complexity adaptive chromatic dispersion (CD) compensation algorithm based on delay-tap sampling technique for optical coherent systems is proposed. By generating a delay-tap plot from the signal powers after an adaptive CD equalizer, a parameter can be extracted from the delay-tap plot which can be used to estimate CD accurately. Simulation results for coherent polarization-division-multiplexed (PDM) quaternary phase-shift keying (QPSK) as well as 16-quadrature amplitude modulation (QAM) systems with various pulse shapes demonstrate that high CD estimation accuracies using relatively few data symbols can be achieved in presence of other transmission impairments.
| Original language | English |
|---|---|
| Article number | 5764498 |
| Pages (from-to) | 1016-1018 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 23 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 11 Jul 2011 |
Keywords
- Chromatic dispersion (CD) compensation
- coherent detection
- delay-tap sampling
- digital signal processing (DSP)
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering