Drawing- and radiation-induced color centers in pure-silica-core optical fibers in the near-IR range

Spectra of the initial loss and radiation-induced attenuation are compared in pure-silica-core optical fibers (PSFs) drawn from the same preform with the help of carbon-resistance heaters (CRH) or an oxyhydrogen flame torch (OFT). OFT-based drawing was found to increase the initial loss at λ = 1.31...

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Bibliographic Details
Published in:Optical fiber technology 2022-10, Vol.73, p.103005, Article 103005
Main Authors: Kashaykin, P.F., Pospelova, E.A., Tomashuk, A.L., Salgansky, M.Yu, Kosolapov, A.F., Vechkanov, N.N., Guryanov, A.N., Bubnov, M.M., Semjonov, S.L.
Format: Article
Language:English
Subjects:
Fiber drawing
H2-diffusion
Optical fiber
Radiation resistance
Radiation-induced attenuation
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Summary:Spectra of the initial loss and radiation-induced attenuation are compared in pure-silica-core optical fibers (PSFs) drawn from the same preform with the help of carbon-resistance heaters (CRH) or an oxyhydrogen flame torch (OFT). OFT-based drawing was found to increase the initial loss at λ = 1.31 and 1.55 µm by ∼2–3 dB/km owing to growth of the 1.38-μm OH-group and 1.53-μm SiH-group absorption bands. RIA was essentially reduced in the OFT-drawn PSF, because of suppression of self-trapped holes. Therefore, OFT-drawing of radiation-resistant PSF is argued to be promising, provided a tradeoff between the initial loss and RIA is found.
ISSN:1068-5200
1095-9912
DOI:10.1016/j.yofte.2022.103005