Site-selective measurement of relaxation properties at 980 nm in Er3+-doped congruent and stoichiometric lithium niobate crystals

Autor(en): Mandula, Gabor
Kis, Zsolt
Kovacs, Laszlo
Szaller, Zsuzsanna
Krampf, Andreas
Stichwörter: EMISSION; ER3+ IONS; LATTICE-RELAXATION; LINBO3; Optics; Physics; Physics, Applied; RARE-EARTH; SPECTROSCOPIC ANALYSIS; TRANSITION-METAL
Erscheinungsdatum: 2016
Herausgeber: SPRINGER HEIDELBERG
Journal: APPLIED PHYSICS B-LASERS AND OPTICS
Volumen: 122
Ausgabe: 4
Zusammenfassung: 
A pump-probe-type saturation spectroscopic experiment has been performed at 980 nm to measure the homogeneous linewidth of the I-4(11/2)-I-4(15/2) transition and the lifetime of the I-4(11/2) state of erbium embedded into lithium niobate single crystals. There are several non-equivalent Er-Li+(3+)-V-Li+ sites with differently oriented defect structure for charge compensation. These non-equivalent centers differ in their transition energies. Hence, our measurements have been done at two nearby frequencies, addressing groups of erbium ions located at non-equivalent sites. The results are compared with lifetime calculations and measurements found in the literature and with the predictions of our simple model calculation.
ISSN: 09462171
DOI: 10.1007/s00340-016-6341-z

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