BEHAVIOR OF BRAGG GRATINGS, WRITTEN IN GERMANOSILICATE FIBERS, AGAINST GAMMA-RAY EXPOSURE AT LOW-DOSE RATE

被引：45
作者：
NIAY, P
BERNAGE, P
DOUAY, M
FERTEIN, E
LAHOREAU, F
BAYON, JF
GEORGES, T
MONERIE, M
FERDINAND, P
ROUGEAULT, S
CETIER, P
机构：
[1] CNET LANNION,FOG,OCM,LAB,F-22301 LANNION,FRANCE
[2] CENS,DEIN,CEA,TECHNOL AVANCEES,LETI,F-91191 GIF SUR YVETTE,FRANCE
[3] CENS,LPMA,CERAC,DPEI,IPSN,F-91191 GIF SUR YVETTE,FRANCE
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1994年 / 6卷 / 11期
关键词：
OPTICAL FIBER; NONLINEAR OPTICS; OPTICAL FIBER SENSOR; OPTICAL FIBER SENSOR NETWORK; NUCLEAR INSTRUMENTATION; NUCLEAR POWER PLANT;
D O I：
10.1109/68.334836
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Bragg gratings have been written within four germanosilicate fibers either by a pulsed or by a continuous-wave exposure of each fiber to a coherent UV two-beam interference pattern. These gratings have been exposed under steady state conditions to gamma-ray doses as high as 10(4) Grays. The dose rates ranged between 10 Gy/h and 1.3 x 10(2) Gy/h. The transmission spectra of the fibers have been recorded during and after the Co-60 irradiation, near the grating Bragg wavelengths. Whereas the induced loss reached 600 dB/km near 1.3 mum, no significant change in the spectral characteristics of the gratings could be detected within the experimental accuracy, enabling their future use in a nuclear environment.
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收藏
页码：1350 / 1352
页数：3
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