scholarly journals Reducing the cross-talk among different orbital angular momentum modes in turbulent atmosphere by using a focusing mirror

2019 ◽  
Vol 27 (7) ◽  
pp. 10280 ◽  
Author(s):  
Mengyao Zhou ◽  
Yunqin Zhou ◽  
Gaofeng Wu ◽  
Yangjian Cai
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Cross Talk ◽  
Turbulent Atmosphere ◽  
The Cross

scholarly journals Simultaneous measurement of orbital angular momentum spectra in a turbulent atmosphere without probe beam compensation

2021 ◽  
Vol 29 (19) ◽  
pp. 30666
Author(s):  
Hui Zhang ◽  
Wenjie Zheng ◽  
Guochen Zheng ◽  
Peng Fu ◽  
Jun Qu ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Probe Beam ◽  
Simultaneous Measurement ◽  
Turbulent Atmosphere ◽  
Momentum Spectra

Effect of atmospheric turbulence on orbital angular momentum entangled state

2021 ◽  
Author(s):  
Xiang Yan ◽  
Peng Fei Zhang ◽  
Cheng Yu Fan ◽  
Jing Hui Zhang
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Turbulent Atmosphere ◽  
Single Phase ◽  
Entangled State ◽  
Optical Wave ◽  
Optical Wave Propagation ◽  
Entangled Photon Pairs ◽  
Screen Model ◽  
Kolmogorov Theory

Abstract The entangled orbital angular momentum (OAM) photons propagating across a weakly turbulent atmosphere are investigated. Here, the paper uses the single-phase screen model based on the Kolmogorov theory of turbulence, especially focuses on the influence of the backward scattering on OAM evolution. The results indicate that the backward scattering plays an important role in the analysis of OAM entanglement evolution in the turbulent atmosphere. It can not be negligible especially for higher-order OAM mode. Moreover, when OAM mode is greater than 4, entangled photon pairs composed of higher OAM modes are not more robust in turbulence within the weak scintillation regime. These results will be useful in future investigations of OAM-based optical wave propagation through turbulent atmosphere.

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