| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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The Laser Action of a Yb:CLNGG Crystal with an Efficiency Approaching Its Quantum Defect Imposed Limit |
| ZHOU Zhi-Chao1,2, TIAN Xue-Ping1,2, DAI Qi-Biao1,2, HAN Wen-Juan1,2, HUANG Jia-Yin1, LIU Jun-Hai1,2**, ZHANG Huai-Jin3 |
1College of Physics, Qingdao University, Qingdao 266071
2Key Laboratory of Photonics Materials and Technology in Universities of Shandong, Qingdao University, Qingdao 266071
3State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100 |
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| Cite this article: |
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ZHOU Zhi-Chao, TIAN Xue-Ping, DAI Qi-Biao et al 2012 Chin. Phys. Lett. 29 064212 |
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Abstract Continuous-wave laser operation is demonstrated at room temperature with a new disordered Yb:CLNGG crystal. A maximum output power of 5.05 W is generated with 7.8 W of pump power absorbed in the crystal, resulting in an optical-to-optical efficiency of 65%, whereas the slope efficiency is determined to be 92%, approaching the limit imposed by the quantum defect in the laser emission process.
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Received: 13 February 2012
Published: 31 May 2012
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| PACS: |
42.55.Rz
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(Doped-insulator lasers and other solid state lasers)
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42.55.Xi
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(Diode-pumped lasers)
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[2] Liu J H, Zhang H J, Han W J, Petrov V and Wang J Y 2008 Opt. Express 16 12201
[3] Schmidt A, Griebner V, Zhang H J, Wang J Y, Jiang M H, Liu J H and Petrov V 2010 Opt. Commun. 283 567
[4] Voronko Y K, Sobol A A, Karasik A Y, Eskov N A, Rabochkina P A and Ushakov S N 2002 Opt. Mater. 20 197
[5] Risk W P 1988 J. Opt. Soc. Am. B 5 1412 |
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