Experimental study on the 1.94-μm laser performance of c-Cut Tm:YAP crystal with various doping concentration

The influence of the thulium ion concentration on the 1.94-μm laser performance of c -cut Tm:YAP crystal was investigated in this paper. Three crystals with 3, 4, and 5% Tm 3+ (atom concentration) were examined at 18°C. Our experimental results showed that, the best power performance was obtained wi...

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Bibliographic Details
Published inLaser physics Vol. 22; no. 9; pp. 1378 - 1380
Main Authors Hongshu, Li, Ming, Zhao, Wenhai, Xu
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.09.2012
Subjects
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Solid State and Liquid Lasers
Thulium
Output Coupler
Slope Efficiency
Laser Phys
Incident Pump Power
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Summary:The influence of the thulium ion concentration on the 1.94-μm laser performance of c -cut Tm:YAP crystal was investigated in this paper. Three crystals with 3, 4, and 5% Tm 3+ (atom concentration) were examined at 18°C. Our experimental results showed that, the best power performance was obtained with the 4% Tm:YAP crystal. By using 24.8 W of incident pump power at 795 nm, a maximum of 7.5 W of output power was obtained. The slope efficiency was 48.8%, corresponding to diode-to-Tm conversion efficiency of 30.2%.
ISSN:1054-660X
1555-6611
DOI:10.1134/S1054660X12090071