Polarization-Insensitive Orbital Angular Momentum Converter Based on Helically Twisted Anti-Resonant Fiber
Based on the topological charge matching principle and mode coupling theory, the higher-order orbital angular momentum (OAM) generating mechanism in a helically-twisted anti-resonant fiber (HARF) is illustrated. We successfully fabricate a left-handed HARF by arc discharge method and excite the <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\mathbf{OAM}_{-1}$</tex> mode. The experimental result shows that the excitation of the <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\mathbf{OAM}_{-1}$</tex> mode is polarization-independent of input light and the polarization of the generated <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\mathbf{OAM}_{-1}$</tex> mode can be controlled by changing the polarization of the input light.
Authors
- Shoufei Gao (ORCID: https://orcid.org/0000-0003-2514-7511)
- Shecheng Gao (ORCID: https://orcid.org/0000-0001-7377-9180)
- Jiajing Tu
- Weiping Liu (ORCID: https://orcid.org/0000-0002-9028-6369)
- Yingying Wang (ORCID: https://orcid.org/0000-0003-4363-8779)
- Zhaohui Li (ORCID: https://orcid.org/0000-0002-6151-8642)
- Jie Zhang (ORCID: https://orcid.org/0000-0003-0810-2442)
- Dongmei Huang (ORCID: https://orcid.org/0000-0001-6930-2136)
Institutions
- Hong Kong Polytechnic University (HK)
- Sun Yat-sen University (CN)
- Jinan University (CN)
Publication Details
- Published
- 2024-11-02
- DOI
- https://doi.org/10.1109/acp/ipoc63121.2024.10809582
- Primary Topic
- Orbital Angular Momentum in Optics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Key Technologies Research and Development Program