We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Highly efficient continuous-wave composite Nd:YAG laser at 1,112 nm under diode pumping directly into the emitting level.
- Authors
Gao, J.; Dai, X.; Zhang, L.; Sun, H.; Wu, X.
- Abstract
We present an efficient, high-brightness laser at 1,112 nm by combining the direct pumping technique with an 885 nm laser diode and the composite crystal. Output power as high as 12.8 W at 1,112 nm is achieved under 22.2 W of absorbed pump power and it yields an optical-to-optical efficiency of 57.7 % and a slope efficiency of 64.0 % with respect to the absorbed pump power. To the best of our knowledge, both of these optical-to-optical and slope efficiencies with respect to the absorbed pump power are the highest values ever reported for 1,112 nm Nd:YAG lasers. Modeling of the temperature rise and stress induced in the laser crystals, with and without the undoped cap, and employing the pump at 808 and 885 nm are performed, respectively. Contributions of the composite crystal geometry and of the pump at 885 nm to lowering the threshold power, enhancing the optical-to-optical and the slope efficiencies with respect to the absorbed pump power are discussed, respectively.
- Subjects
CONTINUOUS wave lasers; ND-YAG lasers; COMPOSITE materials; METAL crystals; SEMICONDUCTOR lasers; OPTICAL properties of metals; HIGH-brightness accelerators; ENERGY consumption
- Publication
Applied Physics B: Lasers & Optics, 2013, Vol 111, Issue 3, p407
- ISSN
0946-2171
- Publication type
Article
- DOI
10.1007/s00340-013-5348-y