Underwater transmission of high-dimensional twisted photons over 55 meters

Yuan Chen; Wei-Guan Shen; Zhan-Ming Li; Cheng-Qiu Hu; Zeng-Quan Yan; Zhi-Qiang Jiao; Jun Gao; Ming-Ming Cao; Ke Sun; Xian-Min Jin

doi:10.1186/s43074-020-0002-5

Underwater transmission of high-dimensional twisted photons over 55 meters

doi: 10.1186/s43074-020-0002-5

基金项目:

National Key R&D Program of China (2019YFA0308700, 2017YFA0303700), the National Natural Science Foundation of China (NSFC) (11761141014, 61734005, 11690033), Science and Technology Commission of Shanghai Municipality (STCSM) (17JC1400403), Shanghai Municipal Education Commission (SMEC) (2017-01-07-00-02-E00049), Shanghai Talent Program.

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出版历程
- 收稿日期: 2019-07-31
- 录用日期: 2019-12-30
- 网络出版日期: 2020-03-04

Underwater transmission of high-dimensional twisted photons over 55 meters

1.
Center for Integrated Quantum Information Technologies (IQIT), School of Physics and Astronomy and State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai, 200240, China
2.
CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, 230026, Anhui, China

Funds:

摘要

摘要: As an emerging channel resource for modern optics, big data, internet traffic and quantum technologies, twisted photons carrying orbital angular momentum (OAM) have been extended their applicable boundary in different media, such as optical fiber and atmosphere. Due to the extreme condition of loss and pressure, underwater transmission of twisted photons has not been well investigated yet. Especially, single-photon tests were all limited at a level of a few meters, and it is in practice unclear what will happen for longer transmission distances. Here we experimentally demonstrate the transmission of single-photon twisted light over an underwater channel up to 55 m, which reach a distance allowing potential real applications. For different order OAM states and their superposition, a good preservation of modal structure and topological charge are observed. Our results for the first time reveal the real transmission performance of twisted photons in a long-distance regime, representing a step further towards OAM-based underwater quantum communication.
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Abstract: As an emerging channel resource for modern optics, big data, internet traffic and quantum technologies, twisted photons carrying orbital angular momentum (OAM) have been extended their applicable boundary in different media, such as optical fiber and atmosphere. Due to the extreme condition of loss and pressure, underwater transmission of twisted photons has not been well investigated yet. Especially, single-photon tests were all limited at a level of a few meters, and it is in practice unclear what will happen for longer transmission distances. Here we experimentally demonstrate the transmission of single-photon twisted light over an underwater channel up to 55 m, which reach a distance allowing potential real applications. For different order OAM states and their superposition, a good preservation of modal structure and topological charge are observed. Our results for the first time reveal the real transmission performance of twisted photons in a long-distance regime, representing a step further towards OAM-based underwater quantum communication.
- Orbital angular momentum /
- Single-photon /
- Underwater quantum communication

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参考文献(32)

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