Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7129339 | Optics & Laser Technology | 2018 | 4 Pages |
Abstract
A simple method is proposed for determining the mode coupling coefficient D in graded index multimode optical fibers. It only requires observation of the output modal power distribution P(m, z) for one fiber length z as the Gaussian launching modal power distribution changes, with the Gaussian input light distribution centered along the graded index optical fiber axis (θ0 = 0) without radial offset (r0â¯=â¯0). A similar method we previously proposed for calculating the coupling coefficient D in a step-index multimode optical fibers where the output angular power distributions P(θ, z) for one fiber length z with the Gaussian input light distribution launched centrally along the step-index optical fiber axis (θ0 = 0) is needed to be known.
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Authors
Svetislav SavoviÄ, Alexandar Djordjevich,