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26 December 1984 Attenuation Of Multimode Fused Silica Optical Fibers Cooled To Liquid Helium Temperature
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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.
© (1984) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Engelsrath, D. R. Larson, D. L. Franzen, and R. J. Phelan "Attenuation Of Multimode Fused Silica Optical Fibers Cooled To Liquid Helium Temperature", Proc. SPIE 0500, Fiber Optics: Short-Haul and Long-Haul Measurements and Applications II, (26 December 1984); https://doi.org/10.1117/12.944593
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