中国物理B ›› 2023, Vol. 32 ›› Issue (12): 124209-124209.doi: 10.1088/1674-1056/ace767

所属专题: SPECIAL TOPIC — Optical field manipulation

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Multi-channel generation of vortex beams with controllable polarization states and orbital angular momentum

Ziyao Lyu(吕子瑶)1, Pan Wang(王潘)2, and Changshun Wang(王长顺)1,†   

  1. 1 State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China;
    2 School of Data Science, The Chinese University of Hong Kong, Shenzhen 518172, China
  • 收稿日期:2023-05-19 修回日期:2023-06-30 接受日期:2023-07-14 出版日期:2023-11-14 发布日期:2023-11-30
  • 通讯作者: Changshun Wang E-mail:cswang@sjtu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No.92050116).

Multi-channel generation of vortex beams with controllable polarization states and orbital angular momentum

Ziyao Lyu(吕子瑶)1, Pan Wang(王潘)2, and Changshun Wang(王长顺)1,†   

  1. 1 State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China;
    2 School of Data Science, The Chinese University of Hong Kong, Shenzhen 518172, China
  • Received:2023-05-19 Revised:2023-06-30 Accepted:2023-07-14 Online:2023-11-14 Published:2023-11-30
  • Contact: Changshun Wang E-mail:cswang@sjtu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No.92050116).

摘要: Optical vortices with tunable polarization states and topological charges are widely investigated in various physical systems and practical devices for high-capacity optical communication. However, this kind of structured light beams is usually generated using several polarization and spatial phase devices, which decreases the configurability of optical systems. Here, we have designed a kind of polarized optical multi-vortices generator based on the Stokes-Mueller formalism and cross-phase modulation. In our scheme, multi-channel generation of polarized vortex beams can be realized through a single optical element and a single-input Gaussian beam. The polarization states and orbital angular momentum of the generated light beams are all-optically controllable. Furthermore, the proposed polarized optical multi-vortices generator has also been demonstrated experimentally through one-step holographic recording in an azobenzene liquid-crystalline film and the experimental results agree with theoretical analysis.

关键词: light field modulation, holography, optical vortex, polarization

Abstract: Optical vortices with tunable polarization states and topological charges are widely investigated in various physical systems and practical devices for high-capacity optical communication. However, this kind of structured light beams is usually generated using several polarization and spatial phase devices, which decreases the configurability of optical systems. Here, we have designed a kind of polarized optical multi-vortices generator based on the Stokes-Mueller formalism and cross-phase modulation. In our scheme, multi-channel generation of polarized vortex beams can be realized through a single optical element and a single-input Gaussian beam. The polarization states and orbital angular momentum of the generated light beams are all-optically controllable. Furthermore, the proposed polarized optical multi-vortices generator has also been demonstrated experimentally through one-step holographic recording in an azobenzene liquid-crystalline film and the experimental results agree with theoretical analysis.

Key words: light field modulation, holography, optical vortex, polarization

中图分类号:  (Holographic optical elements; holographic gratings)

  • 42.40.Eq
42.81.Gs (Birefringence, polarization) 42.30.Lr (Modulation and optical transfer functions)