Multiplexing and demultiplexing of the complex signal in the singular beams propagating in a few-mode optical fibers: an experiment

5th International Conference of Photonics and Information Optics

Halilov, S.^1 ; Ilyasova, A.^1 ; Rubass, A.^1 ; Pogrebnaya, A.^1

V.I. Vernadsky Crimean Federal University, Vernadsky Prospekt 4, Simferopol

295007, Ukraine^1

关键词: Beam polarization;    Few-mode fibers;    Field analysis;    Orbital angular momentum;    Radiation field;    Singular beams;    Stokes polarimetry;    Topological index;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/737/1/012003/pdf
DOI  :  10.1088/1742-6596/737/1/012003

来源: IOP

【 摘 要 】

We have experimentally demonstrated the possibility of multiplexing and demultiplexing the complex signal in the singular beam propagating in a few -mode fiber. Stokes polarimetry method conducted field analysis of the structure at the outlet of a few-mode fiber. The possibility of identifying each of the input signals of the wavelengths and orbital angular momentum. It is found that in the radiation field at the exit of a few-mode fiber, C-points each of which corresponds to the input beam polarization. The topological index of these C-points corresponding to the initial charge of the beams.