Monitoring method for axis alignment of single-mode optical fiber and splice-loss estimation

A new method for core-axis alignment and precise splice-loss estimation for single-mode optical fibers is presented. By using a differential interference contrast microscope, we can achieve core-axis alignment with an offset below 0.3 microm, which results in a butt-joint loss increase of 0.04 dB co...

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Bibliographic Details
Published inOptics letters Vol. 8; no. 4; p. 235
Main Authors Haibara, T, Mals-Umoto, M, Tanifuji, T, Tokuda, M
Format Journal Article
LanguageEnglish
Published United States 01.04.1983
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Summary:A new method for core-axis alignment and precise splice-loss estimation for single-mode optical fibers is presented. By using a differential interference contrast microscope, we can achieve core-axis alignment with an offset below 0.3 microm, which results in a butt-joint loss increase of 0.04 dB compared with that obtained by alignment using a conventional optical monitoring method. Furthermore, splice-loss estimation with a precision of 0.05 dB is attained for a low-loss region without using an index-matching liquid.
ISSN:0146-9592
DOI:10.1364/ol.8.000235