Combined excitation-emission spectroscopy of bismuth active centers in optical fibers.
| Autor: | Firstov SV; Fiber Optics Research Center of the Russian Academy of Science, 38 Vavilov St., 119333, Moscow, Russia., Khopin VF, Bufetov IA, Firstova EG, Guryanov AN, Dianov EM |
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| Jazyk: | angličtina |
| Zdroj: | Optics express [Opt Express] 2011 Sep 26; Vol. 19 (20), pp. 19551-61. |
| DOI: | 10.1364/OE.19.019551 |
| Abstrakt: | 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. (© 2011 Optical Society of America) |
| Databáze: | MEDLINE |
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