EFFECTS OF EXPOSURE TO PHOTONS OF VARIOUS ENERGIES ON TRANSMISSION OF GERMANOSILICATE OPTICAL-FIBER IN THE VISIBLE TO NEAR IR SPECTRAL RANGE

被引：31

作者：

ANOIKIN, EV ^{[1
]}

MASHINSKY, VM ^{[1
]}

NEUSTRUEV, VB ^{[1
]}

SIDORIN, YS ^{[1
]}

机构：

[1] RUSSIAN ACAD MED SCI, INST GEN PHYS, MOSCOW 117942, RUSSIA

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1994年 / 179卷

关键词：

D O I：

10.1016/0022-3093(94)90702-1

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The origins of optical absorption induced in germanosilicate-core optical fiber by exposure to visible, ultraviolet and gamma-radiation have been investigated. The effects of exposure to 5.0 eV photons and gamma quanta were found to be identical and strongly different from the effect of visible-range excitation. Based on the results of the photo- and thermal-bleaching experiments, the absorption components belonging to the dominant color centers were identified. In case of 5.0 eV photons or gamma-irradiation, a new band was revealed at 2.6 eV (480 nm) and ascribed to electron traps Ge X. In the case of visible-range excitation, the so-called low absorption tail dominated, caused by irreversible structural changes in glass. The effects of loss increase with heat treatment are compared between an as drawn fiber and a fiber exposed to visible light.

引用

页码：243 / 253

页数：11

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