Effect of the AlPO4 join on the pump-to-signal conversion efficiency in heavily Er-doped fibers

被引：68

作者：

Likhachev, Mikhail E. ^{[1
]}

Bubnov, Mikhail M. ^{[1
]}

Zotov, Kirill V. ^{[1
]}

Lipatov, Denis S. ^{[2
]}

Yashkov, Mikhail V. ^{[2
]}

Guryanov, Aleksei N. ^{[2
]}

机构：

[1] RAS, Fiber Opt Res Ctr, Moscow 119333, Russia

[2] RAS, Inst Chem High Pur Subst, Nizhnii Novgorod 603950, Russia

来源：

OPTICS LETTERS | 2009年 / 34卷 / 21期

关键词：

SILICA;

D O I：

10.1364/OL.34.003355

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Heavily Er-doped fibers (EDFs) based on P2O5-Al2O3-SiO2 (PAS) ternary glass have been studied. A unique feature of this glass is the formation of a AlPO4 join having a structure similar to that of SiO2 glass and a refractive index below it. It is found that the Er3+ absorption and emission spectra in the PAS EDFs are defined by the dopant (Al2O3 or P2O5) present in excess and are close to those of the corresponding binary glass (Al2O3-SiO2 or P2O5-SiO2). The presence of the AlPO4 join results in the enhancement of the pump-to-signal conversion efficiency in the PAS EDFs as compared with the EDFs based on the P2O5-SiO2 and Al2O3-SiO2 (with 1.5 mol. % Al2O3 and less) binary glasses. The PAS host glass is advantageous in the case of large-mode-area active fibers. (C) 2009 Optical Society of America

引用

页码：3355 / 3357

页数：3

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