Accurate measurement of the cutoff wavelength in a microstructured optical fiber by means of an azimutal filtering technique
Labonte, Laurent · Pagnoux, Dominique · Roy, Philippe · Balhoul, Faouzi · Zghal, Mourad · Melin, Gilles · Burov, Ekaterina · Renversez, Gilles
Original · EN
A simple self-referenced non destructive method is proposed for measuring the cutoff wavelength of microstructured optical fibers (MOFs). It is based on the analysis of the time dependent optical power transmitted through a bow-tie slit rotating in the far-field pattern of the fiber under test. As a first demonstration, the cutoff wavelength of a 2m MOF sample is measured with a precision of 10nm, in good agreement with theoretical predictions.
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