Abstract
We propose an accurate and nondata-aided chromatic dispersion (CD) estimation method involving the use of the cross-correlation function of two heterodyne detection signals for coherent optical communication systems. Simulations are implemented to verify the feasibility of the proposed method for 28-GBaud coherent systems with different modulation formats. The results show that the proposed method has high accuracy for measuring CD and has good robustness against laser phase noise, amplified spontaneous emission noise, and nonlinear impairments.
Original language | English |
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Article number | 016105 |
Journal | Optical Engineering |
Volume | 57 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2018 |
Keywords
- chromatic dispersion
- cross-correlation
- digital signal processing
- heterodyne detection
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Li, Y., Yang, A., Guo, P., Qiao, Y., & Lu, Y. (2018). Chromatic dispersion estimation based on heterodyne detection for coherent optical communication systems. Optical Engineering, 57(1), Article 016105. https://doi.org/10.1117/1.OE.57.1.016105