论文部分内容阅读
在掺铒玻璃波导放大器(EDWA)的三能级速率-传输方程中,考虑两次离子交换工艺中波导掩模窗口宽度w不同所导致的抽运光、信号光模场与光强分布的不同,讨论不同w对EDWA增益特性的影响,得到光强分布的数值解.引入描述波导中抽运光和信号光的归一化光强重叠因子,对EDWA的传统近似解提出修正,得到了修正解,使其更加接近光强分布的数值解.模拟结果表明,在条波导长度为4cm、抽运光波长为980nm、功率为80mW、信号光波长为1534nm、功率为-10dBm条件下,不同w所导致EDWA的增益差别可达2.97dB.修正解的结果比传统近似解更加接近光强分布的数值解.修正解对于EDWA的理论研究、器件设计具有指导作用.
In the three-level rate-transfer equation of Erbium-Doped Glass Waveguide Amplifier (EDWA), considering the differences of the pump light, the signal optical mode field and the light intensity distribution caused by the difference of the waveguide mask window width w in the two ion exchange processes , The influence of different w on the gain characteristics of EDWA is discussed and the numerical solution of the light intensity distribution is obtained.The normalized light intensity overlap factor describing the pump light and signal light is introduced to correct the traditional approximate solution of EDWA and the corrections Solution to make it closer to the numerical solution of the light intensity distribution.The simulation results show that under the conditions of a waveguide length of 4cm, a pumping light wavelength of 980nm, a power of 80mW, a signal light wavelength of 1534nm and a power of -10dBm, different w Which leads to the difference of gain of EDWA up to 2.97dB.The result of correction solution is closer to the numerical solution of light intensity distribution than the traditional approximate solution.The correction solution can guide the theoretical research and device design of EDWA.