Joint-Carrier Phase Tracking Techniques for Coherent Optical
发布时间：2022-01-04 20:24
为了克服电子器件的速率瓶颈,以低成本的方式满足光通信系统容量指数增长的需求,人们引入了基于光并行的超信道来提高波分复用（WDM）系统的频谱效率。“超信道”指的是将一组共同产生、共同传输和共同检测的信道作为一个单一的实体。超信道可以通过使用频分复用（FDM）、空分复用（SDM）或者FDM和SDM的组合（即混合超信道）来实现。同时,偏振复用（PDM）还可以使每个信道的容量获得加倍。超信道的产生,既可以使用独立光源,也可以使用光梳光源。当使用光频梳来实现频域波分复用超信道传输时,因为光梳产生的信道频率是稳定的,并以一种相关的方式漂移,因此各波分复用信道可以被紧密地排列,只需要信道间保留一个更小的保护频带,甚至不需要保护频带。当大量独立的激光源被一个单一的光梳光源代替后,除了可以有效降低硬件复杂度和功耗外,还可以大幅提升光谱效率外。不过由于光梳光源同样存在激光器相位噪声,以及光纤非线性的影响,基于光频梳光源的超同样需要对载波相位进行准确估计和补偿。其中,平均长度是载波相位估计的一个重要参数,需要通过自适应优化以提高性能。此外,在光通信系统中,支持DSP功能的数字相干接收机的日益普及,提高了对降...
【文章来源】：电子科技大学四川省 211工程院校 985工程院校 教育部直属院校
【文章页数】：150 页
【学位级别】：博士
【文章目录】：
摘要
ABSTRACT
Chapter 1 Introduction
1.1 Research Background and Significance
1.2 State of Arts
1.3 Contents and Innovations of the Thesis
1.4 Outline of the Thesis
Chapter 2 Theoretical Basics of Coherent Optical Fiber Communication Systems
2.1 Historical Evolution of Fiber Transport Networks for Optical CommunicationSystems
2.2 Principles of Coherent Optical Fiber Communication System
2.2.1 Transmitter
2.2.2 Fiber Transmission Links
2.2.3 Receiver
2.3 Transceiver DSP Algorithms
2.3.1 Channel Equalization
2.3.2 Carrier Phase Recovery Algorithms for Single-Carrier and OFDMsystems
2.4 Conclusion
Chapter 3 Adaptive Joint-Polarization Carrier Phase Estimation in the Presence ofNonlinear Phase Noise
3.1 Introduction
3.2 Adaptive Average Length Optimization
3.3 Adaptive Carrier Phase Tracking Through Elimination of Large Phase NoiseComponents
3.4 Performance Evaluation of Proposed Adaptive Joint-Polarization Carrier PhaseTracking Techniques
3.4.1 System Set-up for Simulation
3.4.2 Performance Evaluation:Laser Linewidth Effects
3.4.3 Performance Evaluation:Nonlinear Phase Noise Effects
3.5 Conclusion
Chapter 4 Joint-Channel Carrier Phase Tracking Techniques
4.1 Introduction
4.2 Origin, Characterization and Effects of Inter-Channel Differential Phase onJoint-Channel Carrier Phase tracking Performance
4.3 Design of Master-Slave Carrier Phase Tracking Technique
4.4 Performance Evaluation of Designed Master-Slave Carrier Phase TrackingTechnique
4.4.1 System Set-up for Simulation
4.4.2 Performance Evaluation:Laser Linewidth Effects under LinearDispersive Transmission
4.4.3 Performance Evaluation:Nonlinear Phase Noise Effects
4.5 Computational Complexity Comparison between Master Phase Estimator andSlave Phase-Tracker
4.6 Low Overhead Carrier Phase Noise Estimation for Coherent Multi-band OFDMSystems Enabled by Optical Frequency Combs
4.6.1 Design of Master-Slave Carrier Phase Tracking Technique forComb-based OFDM Systems
4.6.2 Performance Evaluation:Laser Linewidth and Nonlinear Phase NoiseEffects
4.7 Conclusion
Chapter 5 Experimental Results
5.1 Introduction
5.2 Experiment Set-up
5.3 Characteristics of Phase noise
5.4 Performance evaluation
5.5 Conclusion
Chapter 6 Conclusions
6.1 Concluding Remarks
6.2 Future Work
Acknowledgements
References
Research Results Obtained During the Study for PhD Degree
Other publications by the author but not included in this thesis
本文编号：3569004
【文章来源】：电子科技大学四川省 211工程院校 985工程院校 教育部直属院校
【文章页数】：150 页
【学位级别】：博士
【文章目录】：
摘要
ABSTRACT
Chapter 1 Introduction
1.1 Research Background and Significance
1.2 State of Arts
1.3 Contents and Innovations of the Thesis
1.4 Outline of the Thesis
Chapter 2 Theoretical Basics of Coherent Optical Fiber Communication Systems
2.1 Historical Evolution of Fiber Transport Networks for Optical CommunicationSystems
2.2 Principles of Coherent Optical Fiber Communication System
2.2.1 Transmitter
2.2.2 Fiber Transmission Links
2.2.3 Receiver
2.3 Transceiver DSP Algorithms
2.3.1 Channel Equalization
2.3.2 Carrier Phase Recovery Algorithms for Single-Carrier and OFDMsystems
2.4 Conclusion
Chapter 3 Adaptive Joint-Polarization Carrier Phase Estimation in the Presence ofNonlinear Phase Noise
3.1 Introduction
3.2 Adaptive Average Length Optimization
3.3 Adaptive Carrier Phase Tracking Through Elimination of Large Phase NoiseComponents
3.4 Performance Evaluation of Proposed Adaptive Joint-Polarization Carrier PhaseTracking Techniques
3.4.1 System Set-up for Simulation
3.4.2 Performance Evaluation:Laser Linewidth Effects
3.4.3 Performance Evaluation:Nonlinear Phase Noise Effects
3.5 Conclusion
Chapter 4 Joint-Channel Carrier Phase Tracking Techniques
4.1 Introduction
4.2 Origin, Characterization and Effects of Inter-Channel Differential Phase onJoint-Channel Carrier Phase tracking Performance
4.3 Design of Master-Slave Carrier Phase Tracking Technique
4.4 Performance Evaluation of Designed Master-Slave Carrier Phase TrackingTechnique
4.4.1 System Set-up for Simulation
4.4.2 Performance Evaluation:Laser Linewidth Effects under LinearDispersive Transmission
4.4.3 Performance Evaluation:Nonlinear Phase Noise Effects
4.5 Computational Complexity Comparison between Master Phase Estimator andSlave Phase-Tracker
4.6 Low Overhead Carrier Phase Noise Estimation for Coherent Multi-band OFDMSystems Enabled by Optical Frequency Combs
4.6.1 Design of Master-Slave Carrier Phase Tracking Technique forComb-based OFDM Systems
4.6.2 Performance Evaluation:Laser Linewidth and Nonlinear Phase NoiseEffects
4.7 Conclusion
Chapter 5 Experimental Results
5.1 Introduction
5.2 Experiment Set-up
5.3 Characteristics of Phase noise
5.4 Performance evaluation
5.5 Conclusion
Chapter 6 Conclusions
6.1 Concluding Remarks
6.2 Future Work
Acknowledgements
References
Research Results Obtained During the Study for PhD Degree
Other publications by the author but not included in this thesis
本文编号：3569004
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