Low-Complexity and Highly-Robust Chromatic Dispersion Estimation for Faster-than-Nyquist Coherent Optical Systems
Abstract
:1. Introduction
2. Principle of the CDE Scheme
Complexity Comparison with the Blind CD Estimation Method
3. Simulation and Discussion
3.1. Simulation Environment
3.2. Analysis of the Impact of the Algorithm Key Parameter
3.3. Evaluation of the CD Estimation Performance
4. Experimental Setup and Performance Analysis
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Algorithm | Real Multiplication | Real Addition |
---|---|---|
Conventional CDE based on FrFT | ||
Proposed two-stage CDE |
Sample | p | Granularity 100 ps/nm | Sample | p | Granularity 200 ps/nm | ||
---|---|---|---|---|---|---|---|
MECD | RCD | MECD | RCD | ||||
4096 | 0.002 | 29 | 2~95 | 4096 | 0.004 | 59 | 1~114 |
8192 | 0.001 | 26 | 1~57 | 8192 | 0.002 | 54 | 0~109 |
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Yang, T.; Jiang, Y.; Wang, Y.; You, J.; Wang, L.; Chen, X. Low-Complexity and Highly-Robust Chromatic Dispersion Estimation for Faster-than-Nyquist Coherent Optical Systems. Photonics 2022, 9, 657. https://doi.org/10.3390/photonics9090657
Yang T, Jiang Y, Wang Y, You J, Wang L, Chen X. Low-Complexity and Highly-Robust Chromatic Dispersion Estimation for Faster-than-Nyquist Coherent Optical Systems. Photonics. 2022; 9(9):657. https://doi.org/10.3390/photonics9090657
Chicago/Turabian StyleYang, Tao, Yu Jiang, Yongben Wang, Jialin You, Liqian Wang, and Xue Chen. 2022. "Low-Complexity and Highly-Robust Chromatic Dispersion Estimation for Faster-than-Nyquist Coherent Optical Systems" Photonics 9, no. 9: 657. https://doi.org/10.3390/photonics9090657