A Review of Tunable Orbital Angular Momentum Modes in Fiber: Principle and Generation
Orbital angular momentum (OAM) beams, a new fundamental degree of freedom, have excited a great diversity of interest due to a variety of emerging applications. The scalability of OAM has always been a topic of discussion because it plays an important role in many applications, such as expanding to...
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MDPI AG
2019-06-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/12/2408 |
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| author | Lipeng Feng Yan Li Sihan Wu Wei Li Jifang Qiu Hongxiang Guo Xiaobin Hong Yong Zuo Jian Wu |
| author_facet | Lipeng Feng Yan Li Sihan Wu Wei Li Jifang Qiu Hongxiang Guo Xiaobin Hong Yong Zuo Jian Wu |
| author_sort | Lipeng Feng |
| collection | DOAJ |
| description | Orbital angular momentum (OAM) beams, a new fundamental degree of freedom, have excited a great diversity of interest due to a variety of emerging applications. The scalability of OAM has always been a topic of discussion because it plays an important role in many applications, such as expanding to large capacity and adjusting the trapped particle rotation speed. Thus, the generation of arbitrary tunable OAM mode has been paid increasing attention. In this paper, the basic concepts of classical OAM modes are introduced firstly. Then, the tunable OAM modes are categorized into three types according to the orbital angular momentums and polarization states of mode carrying. In order to understand the OAM evolution of a mode intuitively, three kinds of Poincaré spheres (PSs) are introduced to represent the three kinds of tunable OAM modes. Numerous methods generating tunable OAM modes can be roughly divided into two types: spatial and fiber-based generation methods. The principles of fiber-based generation methods are interpreted by introducing two mode bases (linearly-polarized modes and vector modes) of the fiber. Finally, the strengths and weaknesses of each generation method are pointed out and the key challenges for tunable OAM modes are discussed. |
| first_indexed | 2024-12-11T09:29:46Z |
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| id | doaj.art-74e3cc3caf6c44c191931372099e7336 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-11T09:29:46Z |
| publishDate | 2019-06-01 |
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| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-74e3cc3caf6c44c191931372099e73362022-12-22T01:13:03ZengMDPI AGApplied Sciences2076-34172019-06-01912240810.3390/app9122408app9122408A Review of Tunable Orbital Angular Momentum Modes in Fiber: Principle and GenerationLipeng Feng0Yan Li1Sihan Wu2Wei Li3Jifang Qiu4Hongxiang Guo5Xiaobin Hong6Yong Zuo7Jian Wu8The State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaThe State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaThe State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaThe State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaThe State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaThe State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaThe State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaThe State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaThe State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaOrbital angular momentum (OAM) beams, a new fundamental degree of freedom, have excited a great diversity of interest due to a variety of emerging applications. The scalability of OAM has always been a topic of discussion because it plays an important role in many applications, such as expanding to large capacity and adjusting the trapped particle rotation speed. Thus, the generation of arbitrary tunable OAM mode has been paid increasing attention. In this paper, the basic concepts of classical OAM modes are introduced firstly. Then, the tunable OAM modes are categorized into three types according to the orbital angular momentums and polarization states of mode carrying. In order to understand the OAM evolution of a mode intuitively, three kinds of Poincaré spheres (PSs) are introduced to represent the three kinds of tunable OAM modes. Numerous methods generating tunable OAM modes can be roughly divided into two types: spatial and fiber-based generation methods. The principles of fiber-based generation methods are interpreted by introducing two mode bases (linearly-polarized modes and vector modes) of the fiber. Finally, the strengths and weaknesses of each generation method are pointed out and the key challenges for tunable OAM modes are discussed.https://www.mdpi.com/2076-3417/9/12/2408orbital angular momentumtunable OAMPoincaré spherestate of polarization |
| spellingShingle | Lipeng Feng Yan Li Sihan Wu Wei Li Jifang Qiu Hongxiang Guo Xiaobin Hong Yong Zuo Jian Wu A Review of Tunable Orbital Angular Momentum Modes in Fiber: Principle and Generation Applied Sciences orbital angular momentum tunable OAM Poincaré sphere state of polarization |
| title | A Review of Tunable Orbital Angular Momentum Modes in Fiber: Principle and Generation |
| title_full | A Review of Tunable Orbital Angular Momentum Modes in Fiber: Principle and Generation |
| title_fullStr | A Review of Tunable Orbital Angular Momentum Modes in Fiber: Principle and Generation |
| title_full_unstemmed | A Review of Tunable Orbital Angular Momentum Modes in Fiber: Principle and Generation |
| title_short | A Review of Tunable Orbital Angular Momentum Modes in Fiber: Principle and Generation |
| title_sort | review of tunable orbital angular momentum modes in fiber principle and generation |
| topic | orbital angular momentum tunable OAM Poincaré sphere state of polarization |
| url | https://www.mdpi.com/2076-3417/9/12/2408 |
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