GAMMA-RADIATION-INDUCED ATTENUATION OF LIGHT IN PURE-SILICA CORE OPTICAL FIBER IN LONG-WAVELENGTH REGION
Kashaykin P.F. Pospelova E.A. Kenzhina I.E. Zaurbekova Zh.A. Askerbekov S.K. Salgansky M.Yu. Shaimerdenov A.A. Tolenova A.U. Tomashuk A.L.
2022al-Farabi Kazakh State National University
International Journal of Mathematics and Physics
2022#13Issue 173 - 78 pp.
The dependences of the spectra of radiation-induced attenuation (RIA) of light in a pure-silica core (PSC) optical fiber (OF) during and after gamma-irradiation up to 590 kGy at a dose rate of 7.6 Gy/s in the near infrared range have been investigated. It was shown that starting with an absorbed dose of ~100 kGy, the RIA at 1550 nm becomes larger than at 1310 nm due to an increase in long-wavelength (LWL) RIA. The absorption band, with a maximum at a wavelength near 1800 nm, responsible for the LWL RIA is fully defined for the first time. At an absorbed dose of 590 kGy at wavelengths of 1310 and 1550 nm, the RIA is 14.1 and 23.3 dB/km, respectively. During 3.5 years of annealing of the OF at room temperature the RIA in the entire spectral range of 1100-1700 nm decreases by 40-50%.
Long-wavelength RIA , Optical fibers , Pure-silica core fiber , Radiation-induced attenuation , RIA
Text of the article Перейти на текст статьи
Kazakh-British Technical University, 59 Tole bi St., Almaty, 050000, Kazakhstan
Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, 38 Vavilov St, 119333, Russian Federation
Institute of Automation and Electrometry SB RAS, 1, Ac. Koptyuga ave, Novosibirsk, 630090, Russian Federation
G. G. Devyatykh Institutute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, 49 Tropinin St, Nizhny Novgorod, 603951, Russian Federation
Satbayev University, Almaty, 050032, Kazakhstan
Kazakh-British Technical University
Prokhorov General Physics Institute of the Russian Academy of Sciences
Institute of Automation and Electrometry SB RAS
G. G. Devyatykh Institutute of Chemistry of High-Purity Substances of the Russian Academy of Sciences
Satbayev University
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026