高效轨道角动量模式检测系统研究
发布时间：2021-09-05 06:00
随着通信技术的快速发展,人们对信息传输容量及速率的要求也越来越高。实现更大的数据传输容量是光通信的主要研究方向。其典型方法是复用多个独立的数据信道,比如波分复用（WDM）,偏振复用（PDM）和空分复用（SDM）等。最近,光子轨道角动量（OAM）复用技术引起了学界许多研究者的广泛关注。本论文主要关注OAM光通信系统中的OAM模式分析所面临的困境,提出了两种高效的模式分析方法,本论文的主要内容:（1）建立了一种基于改进March-Zehnder干涉仪和复合相位光栅的轨道角动量模式的高效分类测量系统。基于涡旋光束之间的正交性,通过联合嵌入道威棱镜的马赫曾德干涉仪（MZI-DP）和复合相位全息图（CPG）的复合系统,我们提出了一种新型OAM解调方案,该方案可以实现对高密度的多OAM光束的同时测量。其中,MZI-DP将OAM光束分类成具有奇、偶拓扑荷的两类光束,紧接着在CPG中,可以分别对奇、偶拓扑荷的两类光束进行测量。在这里,我们在实现高密度拓扑荷测量的同时还可以实现相邻OAM光束之间无重叠分辨。此外我们对含有50个OAM态的复合OAM光束的同时测量进行了仿真,结果表明,我们所提出的方案具有高...
【文章来源】：合肥工业大学安徽省 211工程院校 教育部直属院校
【文章页数】：84 页
【学位级别】：硕士
【文章目录】：
Acknowledgements
摘要
abstract
Chapter Ⅰ Introduction
1.1 Topic background and research significance
1.2 Research stattus of optical vortex generation
1.2.1 Spiral Phase Plate
1.2.2 Metasurface Material
1.2.3 Computer generated holograms method
1.3 Research status of optical vortex detection
1.4 Thesis Outline
1.5 Chapter Conclusion
Chapter Ⅱ Basic theoretical knowledge of optical vortex beams
2.1 Introduction
2.2 Different types of optical vortex beam
2.2.1 Laguerre Gaussian beam
2.2.2 Perfect Optical Vortex
2.3 OAM mode sorter
2.4 Fan-out technology
2.5 Fourier optics theory of diffraction
2.6 Conclusion
Chapter Ⅲ High-Efficiency sorting and measurement of Orbital AngularMomentum modes based on the modified March-Zehnder Interferometerand Complex Phase Gratings
3.1 Introduction
3.2 Theoretical analysis for sorting and measurement of orbital angular momentum modesbased on the modified March-Zehnder interferometer and complex phase grating
3.3 Results and discussion of high-efficiency sorting and measurement of orbital angular momentum modes based on the modified March-Zehnder Interferometer and Complex Phase Gratings
3.4 Conclusion
Chapter Ⅳ Large Range Detection of Perfect Optical Vortex by ModifiedMode Transformer
4.1 Introduction
4.2 Perfect Optical Vortex by modified mode transformer
4.2.1 Perfect Optical Vortex generation
4.2.2 Extending the effective detection range for the mode trasformer
4.3 Image processing algorithm and Transmission
4.4 Conclusion
Chapter Ⅴ Conclusion and Future Work
5.1 Conclusion of this Thesis
5.2 Future Works
Bibliography
List of Journal Publications
Published Paper
Submitted Paper
【参考文献】：
期刊论文
[1]Probing the fractional topological charge of a vortex light beam by using dynamic angular double slits[J]. Jing Zhu,Pei Zhang,Dongzhi Fu,Dongxu Chen,Ruifeng Liu,Yingnan Zhou,Hong Gao,Fuli Li. Photonics Research. 2016(05)
[2]涡旋光束的轨道角动量双缝干涉实验研究[J]. 柯熙政,谌娟,吕宏. 中国科学:物理学 力学 天文学. 2012(10)
博士论文
[1]光学轨道角动量测量技术研究[D]. 周海龙.华中科技大学 2017
硕士论文
[1]OAM激光光源的产生和OAM态检测技术研究[D]. 钟雷.北京理工大学 2015
本文编号：3384817
【文章来源】：合肥工业大学安徽省 211工程院校 教育部直属院校
【文章页数】：84 页
【学位级别】：硕士
【文章目录】：
Acknowledgements
摘要
abstract
Chapter Ⅰ Introduction
1.1 Topic background and research significance
1.2 Research stattus of optical vortex generation
1.2.1 Spiral Phase Plate
1.2.2 Metasurface Material
1.2.3 Computer generated holograms method
1.3 Research status of optical vortex detection
1.4 Thesis Outline
1.5 Chapter Conclusion
Chapter Ⅱ Basic theoretical knowledge of optical vortex beams
2.1 Introduction
2.2 Different types of optical vortex beam
2.2.1 Laguerre Gaussian beam
2.2.2 Perfect Optical Vortex
2.3 OAM mode sorter
2.4 Fan-out technology
2.5 Fourier optics theory of diffraction
2.6 Conclusion
Chapter Ⅲ High-Efficiency sorting and measurement of Orbital AngularMomentum modes based on the modified March-Zehnder Interferometerand Complex Phase Gratings
3.1 Introduction
3.2 Theoretical analysis for sorting and measurement of orbital angular momentum modesbased on the modified March-Zehnder interferometer and complex phase grating
3.3 Results and discussion of high-efficiency sorting and measurement of orbital angular momentum modes based on the modified March-Zehnder Interferometer and Complex Phase Gratings
3.4 Conclusion
Chapter Ⅳ Large Range Detection of Perfect Optical Vortex by ModifiedMode Transformer
4.1 Introduction
4.2 Perfect Optical Vortex by modified mode transformer
4.2.1 Perfect Optical Vortex generation
4.2.2 Extending the effective detection range for the mode trasformer
4.3 Image processing algorithm and Transmission
4.4 Conclusion
Chapter Ⅴ Conclusion and Future Work
5.1 Conclusion of this Thesis
5.2 Future Works
Bibliography
List of Journal Publications
Published Paper
Submitted Paper
【参考文献】：
期刊论文
[1]Probing the fractional topological charge of a vortex light beam by using dynamic angular double slits[J]. Jing Zhu,Pei Zhang,Dongzhi Fu,Dongxu Chen,Ruifeng Liu,Yingnan Zhou,Hong Gao,Fuli Li. Photonics Research. 2016(05)
[2]涡旋光束的轨道角动量双缝干涉实验研究[J]. 柯熙政,谌娟,吕宏. 中国科学:物理学 力学 天文学. 2012(10)
博士论文
[1]光学轨道角动量测量技术研究[D]. 周海龙.华中科技大学 2017
硕士论文
[1]OAM激光光源的产生和OAM态检测技术研究[D]. 钟雷.北京理工大学 2015
本文编号：3384817
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