隨著通信技術(shù)的快速發(fā)展,人們對(duì)信息傳輸容量及速率的要求也越來(lái)越高。實(shí)現(xiàn)更大的數(shù)據(jù)傳輸容量是光通信的主要研究方向。其典型方法是復(fù)用多個(gè)獨(dú)立的數(shù)據(jù)信道,比如波分復(fù)用（WDM）,偏振復(fù)用（PDM）和空分復(fù)用（SDM）等。最近,光子軌道角動(dòng)量（OAM）復(fù)用技術(shù)引起了學(xué)界許多研究者的廣泛關(guān)注。本論文主要關(guān)注OAM光通信系統(tǒng)中的OAM模式分析所面臨的困境,提出了兩種高效的模式分析方法,本論文的主要內(nèi)容:（1）建立了一種基于改進(jìn)March-Zehnder干涉儀和復(fù)合相位光柵的軌道角動(dòng)量模式的高效分類測(cè)量系統(tǒng)�；跍u旋光束之間的正交性,通過(guò)聯(lián)合嵌入道威棱鏡的馬赫曾德干涉儀（MZI-DP）和復(fù)合相位全息圖（CPG）的復(fù)合系統(tǒng),我們提出了一種新型OAM解調(diào)方案,該方案可以實(shí)現(xiàn)對(duì)高密度的多OAM光束的同時(shí)測(cè)量。其中,MZI-DP將OAM光束分類成具有奇、偶拓?fù)浜傻膬深惞馐?緊接著在CPG中,可以分別對(duì)奇、偶拓?fù)浜傻膬深惞馐M(jìn)行測(cè)量。在這里,我們?cè)趯?shí)現(xiàn)高密度拓?fù)浜蓽y(cè)量的同時(shí)還可以實(shí)現(xiàn)相鄰OAM光束之間無(wú)重疊分辨。此外我們對(duì)含有50個(gè)OAM態(tài)的復(fù)合OAM光束的同時(shí)測(cè)量進(jìn)行了仿真,結(jié)果表明,我們所提出的方案具有高... 

【文章來(lái)源】：合肥工業(yè)大學(xué)安徽省 211工程院校 教育部直屬院校

【文章頁(yè)數(shù)】：84 頁(yè)

【學(xué)位級(jí)別】：碩士

【文章目錄】：
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


【參考文獻(xiàn)】：
期刊論文
[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]渦旋光束的軌道角動(dòng)量雙縫干涉實(shí)驗(yàn)研究[J]. 柯熙政,諶娟,呂宏.  中國(guó)科學(xué):物理學(xué) 力學(xué) 天文學(xué). 2012(10)

博士論文
[1]光學(xué)軌道角動(dòng)量測(cè)量技術(shù)研究[D]. 周海龍.華中科技大學(xué) 2017

碩士論文
[1]OAM激光光源的產(chǎn)生和OAM態(tài)檢測(cè)技術(shù)研究[D]. 鐘雷.北京理工大學(xué) 2015



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