Modal decomposition of Laguerre Gaussian beams with different radial orders using optical correlation technique.
TLDR
The use of an optical correlation technique to decompose different radial as well as azimuthal order modes of Laguerre Gaussian (LG) beams and it is shown that this technique is capable of sorting mode spectrum consisting of up to 10 LG modes with an accuracy of better than 97.8%.Abstract:
In this paper, we explore the use of an optical correlation technique to decompose different radial as well as azimuthal order modes of Laguerre Gaussian (LG) beams. We experimentally demonstrate the decomposition of single as well as composite LG beams and compare it with simulations. We report the modal decomposition with 27 dB extinction over several radial and azimuthal orders. Finally, we show that our modal decomposition is capable of sorting mode spectrum consisting of up to 10 LG modes with an accuracy of better than 97.8%.read more
Citations
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Phase Singularities to Polarization Singularities
TL;DR: In this article, a tutorial-cum-review-type article is presented to explain the relation between scalar fields and Stokes fields and the singularities in each of them, where the authors demonstrate this by theoretically and experimentally generating polarization singularities using phase singularities.
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Generation and decomposition of scalar and vector modes carrying orbital angular momentum: a review
Srinivas Pachava,Raghu Dharmavarapu,Raghu Dharmavarapu,Anand Vijayakumar,Anand Vijayakumar,Sruthy Jayakumar,Amogh Manthalkar,Awakash Dixit,Nirmal K. Viswanathan,Balaji Srinivasan,Shanti Bhattacharya +10 more
TL;DR: In this article, the authors address the needs of scientists and engineers who desire to generate/detect OAM modes and are looking for the technique (active or passive) best suited for their application.
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Realization of a scalable Laguerre-Gaussian mode sorter based on a robust radial mode sorter
Dongzhi Fu,Yiyu Zhou,Rui Qi,Stone Oliver,Yunlong Wang,Seyed Mohammad Hashemi Rafsanjani,Jiapeng Zhao,Mohammad Mirhosseini,Zhimin Shi,Pei Zhang,Robert W. Boyd +10 more
TL;DR: This work proposes and experimentally demonstrate a scheme to accomplish complete LG mode sorting, which consists of a novel, robust radial mode sorter that can be used to couple radial modes to polarizations, an ℓ-dependent phase shifter and an OAM mode sorters.
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Airy transform of Laguerre-Gaussian beams.
TL;DR: This research provides another approach to obtain special optical beams and expands the application of Laguerre-Gaussian beams by altering the control parameters α and β, the performance of these special Optical beams is diversified.
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768-ary Laguerre-Gaussian-mode shift keying free-space optical communication based on convolutional neural networks.
TL;DR: The convolutional neural network (CNN) is utilized to recognize both the azimuthal and radial index of superposed LG modes with non-zero radial index based on the artificial-intelligence-enhanced optoelectronic systems.
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