Dynamics of pump-induced refractive index changes in single-mode Yb-doped optical fibers

被引：52

作者：

Fotiadi, Andrei A. ^{[1
]}

Antipov, Oleg L. ^{[2
,3
]}

Megret, Patrice ^{[1
]}

机构：

[1] Fac Polytech Mons, Serv Electromagnetisme & Telecommun, B-7000 Mons, Belgium

[2] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603950, Russia

[3] Russian Acad Sci, Ioffe Physico Tech Inst, St Petersburg 194021, Russia

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 17期

关键词：

D O I：

10.1364/OE.16.012658

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We quantify the refractive index changes (RIC) in single-mode ytterbium-doped optical fibers induced by optical pulses at 980 nm and, for the first time, report details of the effect dynamics. The RIC dynamics is shown to follow that of the population of the excited/unexcited ion states with a factor proportional to their polarizability difference (PD). The absolute PD value is evaluated in the spectral range of 1460-1620 nm for different fiber samples and is found to be independent on the fiber geometry and on the ion concentration. The PD dispersion profile indicates to a predominant far-resonance UV rather than near-resonant IR transitions contribution to the RIC. (c) 2008 Optical Society of America.

引用

页码：12658 / 12663

页数：6

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