Infrared optical loss increase in silica fibers due to hydrogen
IEEE/OSA Journal of Lightwave Technology(1986)
摘要
Hydrogen-related optical loss increases in silica fibers in the infrared wavelength region are discussed. The loss increase phenomena mainly consist of two features: one originated from H 2 absorption loss and the other from OH absorption loss. The origin of these loss increases has been clarified in view of H 2 gas diffusion in fiber and OH bond formation by a chemical reaction via defects in glass network. Countermeasures to suppress the loss increase to a sufficiently low level have been established by preventing the use of P 2 O 5 dopant and by selecting the fiber coating material and the coating condition.
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关键词
Optical fiber losses,Silicon compounds,Hydrogen,Optical fiber cables,Optical losses,Optical fibers,Propagation losses,Power cables,Coatings,Transmission lines
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