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Failure Case Study for Loose Tube Jacketed Optical Fibers

โœ Scribed by H. Nagata; K. Ooto; M. Shiroishi; J. Ogiwara

Book ID
102617657
Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
179 KB
Volume
4
Category
Article
ISSN
1068-5200

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โœฆ Synopsis

In fiber optic devices, the 250 to 400-m-diameter tight jacketed fibers are sometimes jacketed additionally by loose tube-type materials. However, the loose tube jacketed fibers fail possibly due to the shrinkage of the loose tubes, if the tubes are not stabilized enough by preheat aging, etc. Although such phenomena are empirically known, here when the loose tube shrinks, the inner fiber is found to relax by being helically deformed. As a result, commercial fibers could endure at least 1แŽ1.5% longitudinal shrink without a mechanical break, but exhibited excess optical propagation losses due to the bending.

๐Ÿ“œ SIMILAR VOLUMES

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Failure Case Study for Optical Fiber Breaks in Metal Packages
โœ Hirotoshi Nagata; Naoki Mitsugi; Kaori Shima ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 358 KB

A possible cause for optical fiber breaks occurring in hermetically sealed metal packages is examined. Although the fiber itself is screened before use, the potential for fiber breakage still exists since the fiber is installed, slightly bent, in order to accommodate thermal expansion of the package