论文部分内容阅读
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。
The mathematical model of Bi ~ (3 +) - Bi ~ (2 +) - Bi ~ + -Ti ~ (3+) codoped fiber was established in this paper. The rate equations of each ion were listed in the model and established The power transfer equation of light in fiber. The factors affecting the power of spontaneous emission amplification (ASE) spectra are analyzed by solving these equations. Numerical results show that when excited by three kinds of pump light of 280nm, 446nm and 800nm, the width of spontaneous emission spectrum can reach 800nm, covering the traditional three primary colors of 400nm ~ 800nm and the communication band of 1200nm ~ 1600nm. Because of its wide range of spontaneous emission spectra, Bi ~ (3 +) - Bi ~ (2 +) - Bi ~ + -Ti ~ (3+) codoped fiber has broad prospects in the field of optoelectronic devices.