掺铥硅光纤1900nm波段自发辐射放大的理论模型
heoretical modeling of thulium-doped silica fiber’s ASE
第一次提出了关于掺铥硅光纤的1900nm波段的自发辐射的放大的理论模型。自发辐射放大的光谱能量与光纤长度、泵浦能量有关，通过解速率方程和传输方程可以确定它们之间的关系式。为说明这个模型，我们举下面一个例子：假如我们选择一段光纤，其中铥的掺杂浓度是2.25 1025 m-3，光纤纤芯直径是2.6微米，采用808nm激光器泵浦时，当泵浦能量为0.2瓦时，通过我们的理论模型计算可得最佳的光纤长度是8.1米，得到的1800-1950nm范围放大的自发辐射的光能量为60mw，光光转换效率可以达到30.3%。
heoretical model of 1900nm band ASE in thulium-doped silica fibre is presented for the first time. The ASE spectral power as functions of the fiber length, the pump power has been investigated by solving the rate and propagation equations. As a example of this model, when we chose the concentration of thulium in fiber to be 2.25 1025 m-3, and the fiber core diameter to be 2.6 μm, pump power to be 200 mW at 808 nm, we got optimized fiber length is 8.1m, the output power of ASE can reach 60 mW in the range of 1800–1950 nm at this fiber length, the optical-to-optical conversion is 30.3%.
常军、张行愚、于光义、王青圃、宋复俊、公培军
光电子技术
放大自发辐射速率方程激光理论模型
mplified spontaneous emissionrate and propagation equationsheoretical modeling of laser
常军,张行愚,于光义,王青圃,宋复俊,公培军.掺铥硅光纤1900nm波段自发辐射放大的理论模型[EB/OL].(2009-07-23)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/200907-526.点此复制
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