Effect of gamma irradiation on characteristics of Yb-doped fiber materials

Li Fenfei; Zhou Xiaoyan; Zhang Kuibao; Chen Jinzhan; Gao Cong; Zhang Lihua; Shi Zhaohua; Xia Handing; Ye Xin; Wu Weidong; Li Bo

doi:10.11884/HPLPB202032.200059

Volume 32 Issue 8

Aug. 2020

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Article Navigation > High Power Laser and Particle Beams > 2020 > 32(8): 081003

Li Fenfei, Zhou Xiaoyan, Zhang Kuibao, et al. Effect of gamma irradiation on characteristics of Yb-doped fiber materials[J]. High Power Laser and Particle Beams, 2020, 32: 081003. doi: 10.11884/HPLPB202032.200059

Citation:

Li Fenfei, Zhou Xiaoyan, Zhang Kuibao, et al. Effect of gamma irradiation on characteristics of Yb-doped fiber materials[J]. High Power Laser and Particle Beams, 2020, 32: 081003. doi: 10.11884/HPLPB202032.200059

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Effect of gamma irradiation on characteristics of Yb-doped fiber materials

doi: 10.11884/HPLPB202032.200059

1.
Laser Fusion Research Center, CAEP, Mianyang 621900, China
2.
School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China

Received Date: 2020-03-07
Rev Recd Date: 2020-07-30
Publish Date: 2020-08-13

Abstract

Abstract

Yb-doped fibers are the key materials in high power lasers, its application performance will significantly decrease after irradiation with high-energy rays. Therefore, it is necessary to conduct in-depth research on the performance changes of Yb-doped fiber materials under irradiation. A series of optical fiber preforms and optical fibers were prepared by modified chemical vapor deposition combined with rare-earth chelate-doping method. The high-power output performance of the optical fibers and the optical properties of preforms before and after irradiation were studied. The experimental results show that the high-power output of Yb-doped fiber significantly decreased after low-dose irradiation. It can be seen from the absorption spectra that the main reason is that after irradiation, the Al-related defect concentration in the Yb-doped fiber materials increases, and the absorption loss in the visible region increases. Ce ions doping can reduce the increase of Al-oxygen hole centers (Al-OHCs) color center defects caused by radiation, reduce the decrease of Yb ions fluorescence lifetime, and suppress the radiation darkening of Yb-doped fibers to a certain extent.
- Yb-doped fiber,
- radiation,
- color center,
- absorption spectra,
- fluorescence lifetime

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References(27)

References

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