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Proceedings Paper

Attenuation Of Multimode Fused Silica Optical Fibers Cooled To Liquid Helium Temperature
Author(s): A. Engelsrath; D. R. Larson; D. L. Franzen; R. J. Phelan
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Paper Abstract

The feasibility of bringing an optical signal through an optical fiber to a detection and processing system at liquid helium temperature was examined. The attenuation of three multimode optical fibers, from two different manufacturers with different buffer coatings, was measured under different cooling conditions. It was found that the attenuation depends on the cooling condition and has hysteresis effects. Independent of the λ tested (0.4 - 1.65 μm) the attenuation stayed below 0.1 dB/m under controlled slow cooling and under 0,5 dB/m with very fast cooling. Therefore, optical fibers can be used to bring optical signals into a liquid helium cooled Dewar for detection and processing.

Paper Details

Date Published: 26 December 1984
PDF: 7 pages
Proc. SPIE 0500, Fiber Optics: Short-Haul and Long-Haul Measurements and Applications II, (26 December 1984); doi: 10.1117/12.944593
Show Author Affiliations
A. Engelsrath, National Bureau of Standards (United States)
D. R. Larson, National Bureau of Standards (United States)
D. L. Franzen, National Bureau of Standards (United States)
R. J. Phelan, National Bureau of Standards (United States)


Published in SPIE Proceedings Vol. 0500:
Fiber Optics: Short-Haul and Long-Haul Measurements and Applications II
Robert L. Galawa, Editor(s)

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