MODE SCRAMBLER

Provided is a low-loss mode scrambler in which a steady mode distribution can be obtained in a short distance and switch to an entire mode distribution state is easy even when incident light is smaller than a numerical aperture of a fiber to be measured in a multimode fiber having a core diameter ex...

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Bibliographic Details
Main Authors HORIGUCHI, Koji, IIKUBO, Tadahisa, BEPPU, Yoshitada, HYAKUTAKE, Yasuhiro
Format Patent
LanguageEnglish
French
German
Published 16.06.2021
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
TRANSMISSION
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Summary:Provided is a low-loss mode scrambler in which a steady mode distribution can be obtained in a short distance and switch to an entire mode distribution state is easy even when incident light is smaller than a numerical aperture of a fiber to be measured in a multimode fiber having a core diameter exceeding several tens of µm and a numerical aperture of 0.2 or more. One fiber 2 is wound around a plurality of bobbins 3a and 3b having a radius larger than a minimum bending radius of the fiber to form a bundle, and the fiber 2 is twisted by rotating the bobbins 3a and 3b to form a twisted portion 5, whereby it is possible to perform output of a steady mode from light incident on the fiber 2.
Bibliography:Application Number: EP20160827755