【作者】 颜泽平； 陈晓炜； 杨欣； 杨机贵； 黄元龙； 袁绥华；

【Author】 Yan Zeping Cheng Xiaowei Yang Xin~+ Yang Jigui~+ Huang Yuanlong~+ Yuan Suihua (Department of Physics,SW Normal University,Chongqing.400715,China) (+ Chongqing Instrument Materials Research Institute,Chongqing,400700,China)

【机构】 西南师范大学物理系； 重庆仪表材料研究所；

【摘要】 文献提出的光放大材料,由于工艺独特,综合了卤化物和石英作为光放大Pr³⁺离子包裹体和衬底的优点,有希望工程实用化。成功的关键之一在于微孔大尺寸石英玻璃的制作。本文通过优化配方和工艺,制作出厚度约为11mm的微孔玻璃,超过文献报道微孔石英玻璃厚度的三倍。SEM照片显示微孔平均尺寸约为0.2μm。实验测试了微孔玻璃在0.19μm～25μm波段的光吸收谱以及孔隙率、密度、熔缩温度等参数,未检测到有害的羟基（—OH）吸收。已用这种微孔玻璃制得掺400ppm和1000ppmPr³⁺ (或Nd²⁺)的样品,有利于1.3μm光放大材料的荧光寿命,微观结构和热性质等研究。更多还原

【Abstract】 A novel 1.3μm light amplifying material proposed in reference is likely promising in practical applications.One of the keys in success is manufacturing of large volume porous silica glass.By optimizing the burden elements and processing technology of sodium borosilicate glass,we have made porous silica glass samples with their thicknesses three times larger than those reported in reference[2].SEM pictures show an average dimension of 0.2μm of the pores.Parameters such as density,porosity,sintering temperature and absorption spectrum in the range between 0.19μm and 25μm were measured with no hamful OH^- observed. Pr³⁺ or Nd³⁺-doped material samples with 400 ppm and 1000 ppm dopant concentrations in halides were made from our porous glasses to facilitate the functional analysis on 1.3μm light amplifying materials such as fluoresence spectroscopy,microstructure and thermal characterization.更多还原