Abstract

Two optical fibers are considered—round and elliptically deformed (along the entire length) in its cross section. For single-mode operation, analytical expressions are obtained for the energy loss when splicing two such fibers, depending on the eccentricity. It is shown that, provided that the propagation constants in the first and second fibers coincide during their splicing, the energy losses depend not only on the eccentricity of the deformed fiber, but also on the waveguide number.

© 2021 Optical Society of America

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