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Phase noise suppression for coherent optical block transmission systems: a unified framework
Chuanchuan Yang1, Feng Yang, Ziyu Wang
1State Key Laboratory on Advanced Optical Communication Systems and Networks, Peking University, Beijing, China. yangchuanchuan@pku.edu.cn
Optics Express
|September 22, 2011
Summary
A new framework unifies phase noise suppression for coherent optical systems. This adaptive modeling approach effectively mitigates laser phase noise in various transmission methods.
Area of Science:
- Optical Communications
- Signal Processing
Background:
- Phase noise is a significant impairment in coherent optical systems.
- Existing methods for phase noise suppression are often system-specific.
Purpose of the Study:
- To propose a unified framework for phase noise suppression.
- To enable application across diverse coherent optical block transmission systems.
Main Methods:
- Adaptive modeling of phase noise.
- Construction of unified observation equations.
- Unified phase noise estimation and suppression algorithms.
Main Results:
- The proposed framework is applicable to systems like CO-OFDM and CO-SCFDE.
- Numerical simulations confirm effective phase noise mitigation.
- Demonstrated power in suppressing laser phase noise.
Conclusions:
- A universal approach to phase noise suppression in coherent optical systems is presented.
- The framework offers a robust solution for improving signal quality.
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