基于高频等离子体熔融技术制备镱铝共掺石英玻璃

利用高频等离子体粉末熔融技术成功制备出镱铝共掺石英玻璃，并对其相关机理和工艺进行研究,解决了镱铝共掺石英玻璃熔点高、难以制备的难题。该技术为拉制大尺寸和多芯掺杂光子晶体光纤提供可能，并可实现多种稀土离子单掺或共掺。通过采用辅助加热和在氧气气氛下熔融，实现了镱铝共掺石英玻璃内气泡的排除，抑制了镱离子的还原。以此玻璃为纤芯利用堆积拉丝技术拉制的镱铝共掺光子晶体光纤在1200 nm波长处的背景损耗值小于0.25 dB/m，并且以此光纤为增益介质搭建的激光系统得到了激光输出。测试结果表明该技术制备的镱铝共掺石英玻璃具有非常好的光学特性。

Abstract

In order to solve the problem, such as high melting point of Yb3+/Al3+ co-doped silica glass and being difficult to be prepared, the Yb3+/Al3+ co-doped silica glass is prepared by the powder melting technology based on the high-frequency plasma and the related theory and technology are researched. The technology provides the possibility to fabricate very large and multicore rare earth doped photonic crystal fiber (PCF), and single or multiple kinds of rare earth ion doping can be realized. The bubble in the glass is eliminated and the reduction of Yb3+ ion is inhibited by adding auxiliary heating device and using oxygen as the melting atmosphere, respectively. The Yb3+/Al3+ co-doped PCF is drawn by the stack and draw technology using the glass as the PCF core. The background attenuation value of the PCF at 1200 nm is less than 0.25 dB/m, and the laser is emitted in the laser system by using the PCF as the gain medium. The test results indicate that the Yb3+/Al3+ co-doped silica glass prepared by the technology has good optical properties.

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王超, 周桂耀, 韩颖, 夏长明, 赵原源. 基于高频等离子体熔融技术制备镱铝共掺石英玻璃[J]. 中国激光, 2014, 41(6): 0606001. Wang Chao, Zhou Guiyao, Han Ying, Xia Changming, Zhao Yuanyuan. Yb³⁺/Al³⁺ Co-Doped Silica Glass Prepared by Melting Technology Based on High-Frequency Plasma[J]. Chinese Journal of Lasers, 2014, 41(6): 0606001.

基于高频等离子体熔融技术制备镱铝共掺石英玻璃

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