Firstov S V, Khopin V F, Bufetov I A, Firstova E G, Guryanov A N, Dianov E M
Fiber Optics Research Center of the Russian Academy of Science, 38 Vavilov St., 119333, Moscow, Russia.
Opt Express. 2011 Sep 26;19(20):19551-61. doi: 10.1364/OE.19.019551.
For the first time, 3-dimensional luminescence spectra (luminescence intensity as a function of the excitation and emission wavelengths) have been obtained for bismuth-doped optical fibers of various compositions in a wide spectral range (450-1700 nm). The bismuth-doped fibers investigated have the following core compositions: SiO(2), GeO(2), Al-doped SiO(2), and P-doped SiO(2). The measurements are performed at room and liquid nitrogen temperatures. Based on the experimental results, the positions of the low-lying energy-levels of the IR bismuth active centers in SiO(2)- and GeO(2)-core fibers have been determined. Similarity of the energy-level schemes for the two core compositions has been revealed.
首次在宽光谱范围（450 - 1700纳米）内获得了不同成分铋掺杂光纤的三维发光光谱（发光强度作为激发波长和发射波长的函数）。所研究的铋掺杂光纤具有以下纤芯成分：SiO₂、GeO₂、铝掺杂SiO₂和磷掺杂SiO₂。测量在室温和液氮温度下进行。基于实验结果，确定了SiO₂芯和GeO₂芯光纤中红外铋活性中心的低能级位置。揭示了两种纤芯成分的能级图的相似性。
