Spectroscopic characterization and laser performance of Pr,Mg:CaAl12O19

被引：34
作者：
Reichert, Fabian [1 ]
Marzahl, Daniel-Timo [1 ]
Huber, Guenter [1 ,2 ]
机构：
[1] Inst Laser Phys, D-22761 Hamburg, Germany
[2] Hamburg Ctr Ultrafast Imaging, D-22761 Hamburg, Germany
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2014年 / 31卷 / 02期
关键词：
EXCITED-STATE ABSORPTION; CRYSTALLINE ENVIRONMENT; 5D-LEVEL ENERGIES; OPERATION; NM; EMISSION; CE3+;
D O I：
10.1364/JOSAB.31.000349
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on the crystal growth, spectroscopic investigations, and the demonstration of visible laser operation of Pr; Mg: CaAl12O19. Crystals with dopant concentrations of 1 and 6 at. % were grown by the Czochralski method. Polarization-dependent ground-state absorption and emission spectra as well as the excited state absorption characteristics were recorded in the visible spectral region. Furthermore, the decay dynamics of the P-3(0) manifold and the radiative lifetime were determined. By employing a 6 at. % doped Pr; Mg: CaAl12O19 crystal as gain medium and a frequency doubled optically pumped semiconductor laser as pump source, cw laser operation was realized at 644.3 and at 725.2 nm. Maximum output powers and slope efficiencies exceeded 320 mW and 25%, respectively. (C) 2014 Optical Society of America
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收藏
页码：349 / 354
页数：6
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