Abstract
The ability of an optical fiber with axial losses to selectively suppress the fundamental HE 11 mode, as well as the TE and TM waveguide modes, and, simultaneously, to transmit optical vortices with almost zero energy losses is considered. The attenuation coefficients for the corresponding eigenmodes and vortices are determined. It is shown that such a fiber operates as a mode filter for the feeding beam.
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 28, No. 3, 2002, pp. 42–48.
Original Russian Text Copyright © 2002 by Volyar, Fadeeva.
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Volyar, A.V., Fadeeva, T.A. A few-mode optical fiber retaining optical vortices. Tech. Phys. Lett. 28, 102–104 (2002). https://doi.org/10.1134/1.1458503
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DOI: https://doi.org/10.1134/1.1458503