Influence of the fiber index profile on vectorial fiber modes and application to tapered fiber devices

Daxhelet, X

doi:10.1109/JLT.2005.843853

Influence of the fiber index profile on vectorial fiber modes and application to tapered fiber devices

2005-05-01

5

PRE

AI

D

Daxhelet, X *

M

Martineau, L

B

Bures, J

DOI：10.1109/JLT.2005.843853

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The correspondence between the scalar modes LP and the nearly degenerate true vectorial modes in circular two-layer fibers is well established. For example, LP21 corresponds to a combination of EH11 and HE31 while LP02 is composed only of HE12. For the multilayer fibers, inversion of the correspondences for certain modes can occur. We illustrate this inversion for a three-layer fiber. We propose a method permitting to distinguish the hybrid modes HEvμ and EHvμ in such fibers and we show the possibility of major taper-induced power coupling between these modes in SMF-28 fiber.

Keywords:

optical fiber

polarization

tapered fiber

vectorial modes

Influence of the fiber index profile on vectorial fiber modes and application to tapered fiber devices

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