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Proceedings Paper

Suppression of ASE using the co-doping technology
Author(s): Jiangang Zheng; Xiongwei Yan; Xinying Jiang; Zhenguo Wang; Wentao Duan; Mingzhong Li
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Paper Abstract

The energy storage in the Cr4+,Yb:YAG crystal amplifier was stimulated under the conditions of concentration thickness product 15at.%mm and pumping power density 20kW/cm2 for different aperture and doped Cr4+ and Yb3+density, using the pumping dynamic model for Cr4+,Yb:YAG crystal amplifier. The results indicated that, the density of energy storage decreases with the increasing of Yb3+ and amplifier aperture in absence of Cr4+; but the co-doped Cr4+ in Yb:YAG crystal would suppress the ASE in amplifier and affect on the energy storage in the amplifier, the ASE decreases with the increasing of co-doped Cr4+. But the maximum energy storage in amplifier increases firstly, and then decreases with the increasing of Cr4+ density. The reason is that, the Cr4+ in amplifier absorb not only the ASE but also the pumping energy. When less co-doped Cr4+, the ASE in amplifier would be serious, but when more co-doped Cr4+, the co-doped Cr4+ would absorb more pumping energy. Namely, in order to obtain maximum energy storage there is an optimized Cr4+ density, which was determined by the Yb3+ density and aperture of amplifier.

Paper Details

Date Published: 9 June 2011
PDF: 7 pages
Proc. SPIE 8080, Diode-Pumped High Energy and High Power Lasers; ELI: Ultrarelativistic Laser-Matter Interactions and Petawatt Photonics; and HiPER: the European Pathway to Laser Energy, 80800S (9 June 2011); doi: 10.1117/12.887327
Show Author Affiliations
Jiangang Zheng, China Academy of Engineering Physics (China)
Xiongwei Yan, China Academy of Engineering Physics (China)
Xinying Jiang, China Academy of Engineering Physics (China)
Zhenguo Wang, China Academy of Engineering Physics (China)
Wentao Duan, China Academy of Engineering Physics (China)
Mingzhong Li, China Academy of Engineering Physics (China)


Published in SPIE Proceedings Vol. 8080:
Diode-Pumped High Energy and High Power Lasers; ELI: Ultrarelativistic Laser-Matter Interactions and Petawatt Photonics; and HiPER: the European Pathway to Laser Energy
Luis O. Silva; Leonida Antonio Gizzi; Joachim Hein; Georg Korn; Chris Edwards, Editor(s)

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