M. E. Likhachev, M. M. Bubnov, K. V. Zotov, O. I. Medvedkov, D. S. Lipatov, M. V. Yashkov, A. N. Gur'yanov, “Erbium-doped aluminophosphosilicate optical fibres”, Kvantovaya Elektronika, 2010, Volume 40, Number 7,Pages <nobr>633

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Optical fibres

Erbium-doped aluminophosphosilicate optical fibres

M. E. Likhachev^a, M. M. Bubnov^a, K. V. Zotov^a, O. I. Medvedkov^a, D. S. Lipatov^b, M. V. Yashkov^b, A. N. Gur'yanov^b

^a Fiber Optics Research Center of the Russian Academy of Sciences, Moscow
^b Institute of Chemistry of High-Purity Substances RAS

Abstract: We have studied the active properties of erbium-doped aluminophosphosilicate (APS) core fibres in wide ranges of erbia, alumina and phosphorus pentoxide concentrations. The absorption and luminescence spectra of the P₂O₅- or Al₂O₃-enriched erbium-doped APS fibres are shown to be similar to those of the erbium-doped fibres singly doped with phosphorus pentoxide or alumina, respectively. The formation of AlPO₄ in APS fibres leads not only to a reduction in the refractive index of the glass but also to a marked increase in Er₂O₃ solubility in silica.

PACS: 42.55.Wd, 42.81.Cn

Received: 23.03.2010