Citation
V. Dierolf et al., Excited state absorption study and Judd-Ofelt analysis of Er3+-states in Ti : LiNbO3 channel-waveguides, RADIAT EFF, 150(1-4), 1999, pp. 305-309
Citations number
2
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
RADIATION EFFECTS AND DEFECTS IN SOLIDS
ISSN journal
10420150
→ ACNP
Volume
150
Issue
1-4
Year of publication
1999
Pages
305 - 309
Database
ISI
SICI code
1042-0150(1999)150:1-4<305:ESASAJ>2.0.ZU;2-5
Abstract
The Ti:LiNbO3 channel-waveguides with Er3+ ions incorporated by diffusion-d
oping were studied. Excited state absorption spectra under pumping at 1.5 m
u m and 980 nm were measured by means of a double modulation lock-in techni
que, The evaluated line strengths for several absorption transitions were a
nalyzed 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 5
50 nm up-conversion laser operation.