Adaptive Chromatic Dispersion Compensation for Coherent Communication Systems Using Delay-Tap Sampling Technique
2011 (English)In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 23, no 14, 1016-1018 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2011. Vol. 23, no 14, 1016-1018 p.
Chromatic dispersion (CD) compensation, coherent detection, delay-tap sampling, digital signal processing (DSP)
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-37152DOI: 10.1109/LPT.2011.2151280ISI: 000292389300010ScopusID: 2-s2.0-79959955160OAI: oai:DiVA.org:kth-37152DiVA: diva2:432438