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Reverse energy flow in vector modes of optical fibers
S.S. Stafeev 1,2, A.D. Pryamikov 3, G.K. Alagashev 3, V.V. Kotlyar 1,2

1 IPSI RAS – Branch of the FSRC "Crystallography and Photonics" RAS,
443001, Samara, Russia, Molodogvardeyskaya 151;
2 Samara National Research University, 443086, Samara, Russia, Moskovskoye Shosse 34;
3 Prokhorov General Physics Institute of the Russian Academy of Sciences, 119333, Moscow, Russia, 38 Vavilov street

 PDF, 849 kB

DOI: 10.18287/2412-6179-CO-1229

Pages: 36-39.

Full text of article: Russian language.

Abstract:
In this paper, the propagation of a second-order cylindrical vector beam in gradient-index and microstructured fibers is numerically simulated using the RSoft Fullwave software. The second-order vector beams are shown to be vector modes of these fibers. In the calculated fundamental modes, regions are found in which there is an energy flow directed oppositely to the beam propagation direction (regions of a reverse energy flow). The absolute value of the longitudinal component of the reverse energy flow is found to be much lower than that of the forward flow.

Keywords:
reverse energy flow, vector mode, polarization vortex, microstructured fiber.

Citation:
Stafeev SS, Pryamikov AD, Alagashev GK, Kotlyar VV. Reverse energy flow in vector modes of optical fibers. Computer Optics 2023; 47(1): 36-39. DOI: 10.18287/2412-6179-CO-1229.

Acknowledgements:
This work was supported by the Russian Science Foundation (Project No. 22-22-00575).

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