Effects of melting temperature and composition on spectroscopic properties of Er3+-doped bismuth glasses

被引:16
作者
Chu, Yushi [1 ]
Ren, Jing [1 ]
Zhang, Jianzhong [1 ]
Liu, Lu [1 ]
Wang, Pengfei [1 ]
Yang, Jun [1 ]
Peng, Gangding [2 ]
Yuan, Libo [1 ]
机构
[1] Harbin Engn Univ, Key Lab In Fiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R China
[2] Univ New S Wales, Sch Elect Engn & Telecommun, Photon & Opt Commun, Sydney, NSW 2052, Australia
来源
OPTICAL MATERIALS EXPRESS | 2016年 / 6卷 / 01期
基金
中国国家自然科学基金;
关键词
BAND INFRARED LUMINESCENCE; ER3+ IONS; OPTICAL-PROPERTIES; OXIDE GLASSES; EMISSION; FIBER; LASER; BI2O3;
D O I
10.1364/OME.6.000279
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The spectroscopic properties (SPs) of bismuth glasses are strongly influenced by the preparation conditions. Here, we studied the effects of melting temperature and concentration ratio of Bi2O3 to SiO2 on the SPs of Er3+ doped Bi2O3-B2O3-SiO2 bismuth glasses. We have shown that the low melting temperature is preferable to achieve large and broad gain of Er3+ ions. When melted at high temperatures, however, the glasses get darkened which is against the application of these materials for optical fiber amplifiers. On the other hand, we have also shown that a compromise has to be made between the laser gain and threshold regarding the optimum concentration ratio of Bi2O3 to SiO2. Theoretical radiative transition rate and quantum efficiency of the 1.55 mu m emission of Er3+ have been obtained by Judd-Ofelt (JO) fitting. The variation of the JO parameters characterizing the local chemical environments around Er3+ can be explained based on the concept of optical basicity. (C)2015 Optical Society of America
引用
收藏
页码:279 / 287
页数:9
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