Optical absorption of Bi2+-ODC(II) active center in Bi-doped silica optical fiber

被引：14
作者：
Sun, Shihao [1 ,3 ]
Jia, Baonan [1 ]
Yan, Binbin [1 ]
Li, Shanjun [2 ]
Gao, Cong [3 ]
Wang, Jianjun [3 ]
Yang, Bin [4 ]
Lu, Pengfei [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Minist Educ, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
[2] Sichuan Univ, Coll Elect Engn & Informat Technol, Chengdu 610065, Sichuan, Peoples R China
[3] China Acad Engn Phys, Res Ctr Laser Fus, Mianyang 621900, Sichuan, Peoples R China
[4] Minist Sci & Technol, High Tech Res & Dev Ctr, Beijing 100044, Peoples R China
来源：
JOURNAL OF LUMINESCENCE | 2019年 / 213卷
基金：
中国国家自然科学基金;
关键词：
First-principles; Divalent bismuth; ODC(II); NIR absorption; INITIO MOLECULAR-DYNAMICS; OXYGEN-DEFICIENT CENTERS; NEAR-IR LUMINESCENCE; BROAD-BAND EMISSION; GREENS-FUNCTION; BISMUTH; GLASSES; ORIGIN; RED; AMPLIFICATION;
D O I：
10.1016/j.jlumin.2019.05.047
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
By using first-principles calculations, oxygen deficient centers (ODC(II), ODC(I) and E' center) with divalent bismuth were investigated in the model of silica optical fiber. Geometric structures, electronic and optical properties of the defect models were calculated by the method of GW + BSE, and the reaction path from Bi2+ ODC(II) to Bi2+-E' center through the transition state of Bi2+-ODC(I) was plotted by CI-NEB calculations. Our results revealed that the absorption band at 1520 nm mainly attributes to the complex of Bi2+-ODC(II) in Bi-doped silica optical fiber.
引用
收藏
页码：304 / 309
页数：6
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