Excited state absorption study and Judd-Ofelt analysis of Er3+-states in Ti:LiNbO3 channel-waveguides

被引：1

作者：

Dierolf, V ^{[1
]}

Kutsenko, AB ^{[1
]}

Tallian, F ^{[1
]}

von der Osten, W ^{[1
]}

机构：

[1] Univ Gesamthsch Paderborn, Fachbereich Phys 6, D-33098 Paderborn, Germany

来源：

RADIATION EFFECTS AND DEFECTS IN SOLIDS | 1999年 / 150卷 / 1-4期

关键词：

Ti : LiNbO3 waveguides; excited state absorption; Er3+ ions;

D O I：

10.1080/10420159908226248

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The Ti:LiNbO3 channel-waveguides with Er3+ ions incorporated by diffusion-doping were studied. Excited state absorption spectra under pumping at 1.5 mu m and 980 nm were measured by means of a double modulation lock-in technique, The evaluated line strengths for several absorption transitions were analyzed by the Judd-Ofelt theory taking into account the crystal anisotropy. On this basis the pumping power dependence of relative populations of Er3+-states was determined which is important in view of possible 3 mu m and 550 nm up-conversion laser operation.

引用

页码：305 / 309

页数：5