Bi^(3+)-Bi^(2+)-Bi^+-Ti^(3+)共掺光纤发射光谱的研究  

Broadband emission spectrum in Bi^(3+)-Bi^(2+)-Bi^+-Ti^(3+) codoped fibers

作　　者：韦明书[1] 朱晓东 姜淳[1] WEI Ming-shu;JIANG Chun;ZHU Xiao-dong(State Key Laboratory of Advanced Optical Communication System & Networks,Shanghai Jiaotong U niversity,Shanghai 200240 ,China;Shanghai Zhikun Semiconductor Co .,Ltd .,Shanghai 200333,China)

机构地区：[1]上海交通大学区域光纤通信网与新型光纤通信系统国家重点实验室,上海200240 [2]上海智坤半导体有限公司,上海200333

出　　处：《信息技术》2016年第12期65-70,共6页Information Technology

基　　金：江苏省未来网络前瞻性研究项目(BY2013095-3-12)

摘　　要：文中建立了Bi^(3+)-Bi^(2+)-Bi^+-Ti^(3+)共掺光纤的数学模型,在模型中针对各个离子的能级列出了速率方程并建立了光在光纤中的功率传输方程。通过对这些方程的求解来分析影响自发辐射放大(ASE)谱功率的因素。数值结果显示,当用280nm、446nm、800nm三种泵浦光激发时,自发辐射放大谱的宽度可达到800nm,覆盖400nm^800nm的传统三基色和1200nm^1600nm的通信波段。由于具有较宽的自发辐射放大谱,Bi^(3+)-Bi^(2+)-Bi^+-Ti^(3+)共掺光纤作为光纤光源在光电子器件应用中有广阔前景。This paper presents the energy level,rate equations and power transfer equations ol Bi3+ -Bi2+ - Bi+ - Ti3 + co-doped liber. These equations are solved numerically to analyze the evolution of amplified spontaneous emission (ASE ) spectrum. The numerical results show that using two pumps withwavelengths 28 0,4 4 6,800n m ,the bandwidth ol ASE can reach 800n m ,covering from 400n m to 800n mand from 1200n m to 1600n m . The Bi3+ - Bi2+ - Bi + - Ti3 + co-doped liber has the widest ASE spectrum reported so far,and has great potential to be applied in optoelectronics devices as liber optical source.

关 键 词：Bi3+-Bi2+-Bi+-Ti3+共掺 宽带ASE 速率方程 功率传输方程 

分 类 号：TN929.11[电子电信—通信与信息系统]