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Proceedings Paper

Influence of the neodymium glass parameters on the amplified spontaneous emission in slab amplifier
Author(s): Bingyan Wang; Junyong Zhang; Yanli Zhang; Li Wang; Jianqiang Zhu
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Paper Abstract

Amplified spontaneous emission (ASE) causes the decrease of the inverted population density and the nonuniformity of gain in slab amplifier for high power laser systems. In this paper, a three dimension model, based on the data in SG-II, in which the residual reflection in the cladding and the ASE process are taken into consideration, is built to analyze the space distribution and time evolution of small signal gain coefficient using Monte Carlo algorithm and ray tracing. This model has been verified by comparing with the experimental data. The traverse size of slab is 68.2cm×36.3cm, which is usually decided by the clear aperture and the manufacture. By means of the model, the impact of thickness, residual reflectivity and the stimulated cross section of neodymium glass to the ASE are analyzed in detail.

Paper Details

Date Published: 3 February 2015
PDF: 7 pages
Proc. SPIE 9255, XX International Symposium on High-Power Laser Systems and Applications 2014, 92551P (3 February 2015); doi: 10.1117/12.2071248
Show Author Affiliations
Bingyan Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Junyong Zhang, Shanghai Institute of Optics and Fine Mechanics (China)
Yanli Zhang, Shanghai Institute of Optics and Fine Mechanics (China)
Li Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Jianqiang Zhu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 9255:
XX International Symposium on High-Power Laser Systems and Applications 2014
Chun Tang; Shu Chen; Xiaolin Tang, Editor(s)

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