Abstract
This work presents some results of experimental approbation of method for writing of cascaded precision microstructured defects, like tapers and up-tapers, in various configurations and sequences in silica multimode graded index optical fibers by commercially available field fusion splicer with modified software settings. Here we utilized earlier on developed technique for micro-defect geometry parameters estimation via analysis of photo-image, performed after defect writing and displayed on fusion splicer screen, to estimate the least available distance between couples of the “up-tapers” and “tapers” without optical fiber structure deformation. Also, some results of insertion loss measurements for various configuration of 3-element cascaded microstrucured defects are presented.
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