High-temperature stability of optical transmission properties attained by liquid-crystal polymer jacket
- 1 June 1986
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 4 (6) , 614-618
- https://doi.org/10.1109/jlt.1986.1074763
Abstract
Liquid crystal polyester (LCP) tight jackets, developed as secondary coatings on optical fibers, exhibit Young's moduli of 10-20 GPa and linear expansion coefficients on the order of 10-6/°C. Because of their low linear expansion coefficients, and because they exhibit no thermal shrinkage, the LCP jackets cause a slight change in fiber strain on the order of 10-4percent/°C, or a change in the thermal coefficients of the transit time delay as low as 14-29 ps/km°C in an 80 to -60°C temperature range for tight-jacketed optical fibers. Furthermore, the LCP tight-jacketed optical fibers exhibit no excess loss in this temperature range.Keywords
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