Influence of gamma-ray irradiation on Faraday effect of Cu-doped germano-silicate optical fiber

Influence of gamma-ray irradiation on the Faraday effect of the Cu-doped germano-silicate optical fiber was investigated. The Verdet constant of the gamma-ray irradiated optical fiber at 660nm was measured to be 3.07radT−1m−1, 1.46 times larger than that of before the irradiation at total dose of 12...

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Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2015-02, Vol.344, p.39-43
Main Authors: Kim, Youngwoong, Ju, Seongmin, Jeong, Seongmook, Jang, Myoung-Jin, Kim, Jong-Yeol, Lee, Nam-Ho, Jung, Hyun-Kyu, Han, Won-Taek
Format: Article
Language:English
Subjects:
Beam interactions
Copper
Defects
Faraday effect
Gamma-ray
Irradiation
Metal particles
Optical fiber
Optical fibers
Radiation-induced effect
Verdet constant
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Summary:Influence of gamma-ray irradiation on the Faraday effect of the Cu-doped germano-silicate optical fiber was investigated. The Verdet constant of the gamma-ray irradiated optical fiber at 660nm was measured to be 3.07radT−1m−1, 1.46 times larger than that of before the irradiation at total dose of 1200Gy. Cu-related radiation-induced defect centers and Cu metal particles which were reduced from Cu2+ ions by the irradiation are thought to be responsible for the increase in the Verdet constant of the optical fiber.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2014.11.091