Gamma-ray radiation response at 1550 nm of fluorine-doped radiation hard single-mode optical fiber

被引：21

作者：

Kim, Youngwoong ^{[1
]}

Ju, Seongmin ^{[1
]}

Jeong, Seongmook ^{[1
]}

Lee, Seung Ho ^{[1
]}

Han, Won-Taek ^{[1
]}

机构：

[1] Gwangju Inst Sci & Technol, Dept Phys & Photon Sci, Sch Informat & Commun, 123 Cheomdan Gwagiro, Gwangju, South Korea

来源：

OPTICS EXPRESS | 2016年 / 24卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

SELF-TRAPPED HOLES; HARDENING TECHNIQUES; INDUCED DEFECTS; SILICA; PURE; IRRADIATION; NEUTRON; SIO2;

D O I：

10.1364/OE.24.003910

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have investigated gamma-ray radiation response at 1550 nm of fluorine-doped radiation hard single-mode optical fiber. Radiation-induced attenuation (RIA) of the optical fiber was measured under intermittent gamma-ray irradiations with dose rate of similar to 10 kGy/h. No radiation hardening effect on the RIA by the gamma-ray pre-dose was found when the exposed fiber was bleached for long periods of time (27 similar to 47 days) at room-temperature. Photo-bleaching scheme upon 980 nm LD pumping has proven to be an effective deterrent to the RIA, particularly by suppressing the incipient RIA due to room-temperature unstable self-trapped hole defects (STHs). Large temperature dependence of the RIA of the optical fiber together with the photo-bleaching effect are worthy of note for reinforcing its radiation hard characteristics. (C)2016 Optical Society of America

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收藏

页码：3910 / 3920

页数：11

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