Resonant and thermal changes of refractive index in a heavily doped erbium fiber pumped at wavelength 980 nm
Resonant and thermal changes of refractive index in a heavily doped erbium fiber pumped at wavelength 980 nm
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DOI：
10.1063/1.1787151
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发表时间：
2004-09-27
影响因子：
4
通讯作者：
Andrés, MV
中科院分区：
文献类型：
--
作者：
Barmenkov, YO;Kir'yanov, AV;Andrés, MV
本文报道了在980 nm泵浦下，重掺铒石英光纤在1500-1580 nm光谱范围内折射率变化的理论和实验研究。在折射率变化的两个主要贡献是解决的谐振部分由光纤中的饱和效应和热的一部分源于光纤加热由于激发态吸收和斯托克斯损耗。我们证明了在所得到的折射率变化的热贡献是一个显着的值，这是具有高浓度的铒离子的铒光纤的特征。(C)美国物理学会.
We report a theoretical and experimental study of the refractive index variation in a heavily doped erbium silica fiber within the spectral range 1500-1580 nm under the pumping at the wavelength 980 nm. The two main contributions in the refractive index change are addressed-the resonant part determined by the saturation effect in the fiber and the thermal part stemming from the fiber heating due to the excited-state absorption and Stokes losses. We demonstrate that the thermal contribution in the resultant refractive index change is a notable value, which is the feature of erbium fibers with a high concentration of erbium ions. (C) American Institute of Physics.