A nondestructive method of measuring losses in polymeric optical fibres
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A procedure has been described for nondestructive measurement of specific light losses in polymeric optical fibres, from lateral scattering. The procedure is applicable in the case of a nonuniform optical fibre in which the intensity of lateral scattering does not change exponentially along the fibre.
To measure light losses in a specimen of lengthl, it is necessary to measure the intensity of the light scattering through the side surface of specimen sections of lengthl1 andl2 (l=l1+l2) twice: interchanging the places of the input and output ends of the fibre.
KeywordsPolymer Optical Fibre Side Surface Nondestructive Method Specimen Section
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