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Fast modal decomposition for optical fibers using digital holography.


ABSTRACT: Eigenmode decomposition of the light field at the output end of optical fibers can provide fundamental insights into the nature of electromagnetic-wave propagation through the fibers. Here we present a fast and complete modal decomposition technique for step-index optical fibers. The proposed technique employs digital holography to measure the light field at the output end of the multimode optical fiber, and utilizes the modal orthonormal property of the basis modes to calculate the modal coefficients of each mode. Optical experiments were carried out to demonstrate the proposed decomposition technique, showing that this approach is fast, accurate and cost-effective.

SUBMITTER: Lyu M 

PROVIDER: S-EPMC5529422 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Fast modal decomposition for optical fibers using digital holography.

Lyu Meng M   Lin Zhiquan Z   Li Guowei G   Situ Guohai G  

Scientific reports 20170726 1


Eigenmode decomposition of the light field at the output end of optical fibers can provide fundamental insights into the nature of electromagnetic-wave propagation through the fibers. Here we present a fast and complete modal decomposition technique for step-index optical fibers. The proposed technique employs digital holography to measure the light field at the output end of the multimode optical fiber, and utilizes the modal orthonormal property of the basis modes to calculate the modal coeffi  ...[more]

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