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Photonics
Volume 10
Issue 4
10.3390/photonics10040414
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Communication

Improved Radiation Resistance of Er-Yb Co-Doped Silica Fiber by Pretreating Fibers

by
Yiming Zhu
1,2,
Chongyun Shao
1,*,
Fan Wang
1,
Meng Wang
1,
Lei Zhang
1,
Ye Dai
2,
Chunlei Yu
1,3,* and
Lili Hu
1,3
1
Key Laboratory of High Power Laser Materials, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
2
Department of Physics, Shanghai University, Shanghai 200444, China
3
Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
*
Authors to whom correspondence should be addressed.
Photonics 2023, 10(4), 414; https://doi.org/10.3390/photonics10040414
Submission received: 8 March 2023 / Revised: 1 April 2023 / Accepted: 2 April 2023 / Published: 6 April 2023
(This article belongs to the Special Issue High Power Fiber Laser and Amplifiers)
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Abstract

In this study, a pretreatment method for improving the radiation resistance of Er-Yb co-doped silica fiber (EYDF) is proposed. EYDF is the object in this method and is processed by two steps, including deuterium loading and pre-irradiation. The effects of pretreatment conditions on the laser performance and radiation resistance of EYDF were systematically studied. An online irradiation experiment setup was utilized to evaluate the radiation resistance of EYDF. The results demonstrate that the pretreatment can significantly improve the radiation resistance of EYDF, with minimal impact on the laser output power and slope efficiency. Specifically, the radiation-induced gain variations in the pristine fiber and the pretreated fiber with a cumulative dose of 240 krad were 3.13 dB and 1.81 dB, respectively. Additionally, the high-vacuum experiments show that the proposed pretreatment method can maintain a long-term stable radiation resistance improvement in the fiber. This study provides a method to improve the radiation resistance of EYDF for space applications.
Keywords: Er-Yb co-doped fiber; radiation-resistant fiber; D2 loading; pre-irradiation Er-Yb co-doped fiber; radiation-resistant fiber; D2 loading; pre-irradiation

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MDPI and ACS Style

Zhu, Y.; Shao, C.; Wang, F.; Wang, M.; Zhang, L.; Dai, Y.; Yu, C.; Hu, L. Improved Radiation Resistance of Er-Yb Co-Doped Silica Fiber by Pretreating Fibers. Photonics 2023, 10, 414. https://doi.org/10.3390/photonics10040414

AMA Style

Zhu Y, Shao C, Wang F, Wang M, Zhang L, Dai Y, Yu C, Hu L. Improved Radiation Resistance of Er-Yb Co-Doped Silica Fiber by Pretreating Fibers. Photonics. 2023; 10(4):414. https://doi.org/10.3390/photonics10040414

Chicago/Turabian Style

Zhu, Yiming, Chongyun Shao, Fan Wang, Meng Wang, Lei Zhang, Ye Dai, Chunlei Yu, and Lili Hu. 2023. "Improved Radiation Resistance of Er-Yb Co-Doped Silica Fiber by Pretreating Fibers" Photonics 10, no. 4: 414. https://doi.org/10.3390/photonics10040414

APA Style

Zhu, Y., Shao, C., Wang, F., Wang, M., Zhang, L., Dai, Y., Yu, C., & Hu, L. (2023). Improved Radiation Resistance of Er-Yb Co-Doped Silica Fiber by Pretreating Fibers. Photonics, 10(4), 414. https://doi.org/10.3390/photonics10040414

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