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Proceedings Paper

Preparation of Yb3+-doped silica fiber preform at low temperature
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Paper Abstract

We report a new method to prepare active silica fiber preform at low temperature, not exceeding 1300℃ through the whole process. We prefabricated glass parts with nano-porous structure by UV cure equipment and debinded, the average pore diameter is about 46 nm. To prepare the active fiber preform, several different concentrations of Yb3+ ions were impregnated with solution doping method and further sintering under flowed O2. After several hours vitrification, the Yb3+- doped silica fiber preform with 0.05 wt%, 0.1 wt% and 0.2 wt% doping concentration were produced, and the size of the final fiber preform is φ3×39 mm. Then the fiber owning an Yb3+ concentration of 0.1 wt% was drawn by rod-in-tube, the measurements show that Yb3+ ions are homogeneous, central wavelength is 1030 nm, the 3 dB linewidth is about 38 nm, fluorescent lifetime is 1 ms, the fiber has absorption from Yb3+ 7 dB/m at 976 nm. To best of our knowledge, it is first time that active fiber preform is produced by this approach.

Paper Details

Date Published: 12 March 2020
PDF: 6 pages
Proc. SPIE 11437, 2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 114370J (12 March 2020); doi: 10.1117/12.2548808
Show Author Affiliations
Baoluo Zheng, Beijing Univ. of Technology (China)
Jinhang Wang, Beijing Univ. of Technology (China)
Yu Liu, Beijing Univ. of Technology (China)
Pu Wang, Beijing Univ. of Technology (China)


Published in SPIE Proceedings Vol. 11437:
2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications
Zhiyi Wei; Chunqing Gao; Pu Wang; Franz X, Kärtner; Stefan A. Weber, Editor(s)

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