3 February 2015 Influence of the neodymium glass parameters on the amplified spontaneous emission in slab amplifier
Author Affiliations +
Proceedings Volume 9255, XX International Symposium on High-Power Laser Systems and Applications 2014; 92551P (2015) https://doi.org/10.1117/12.2071248
Event: XX International Symposium on High Power Laser Systems and Applications, 2014, Chengdu, China
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.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bingyan Wang, Junyong Zhang, Yanli Zhang, Li Wang, Jianqiang Zhu, "Influence of the neodymium glass parameters on the amplified spontaneous emission in slab amplifier", Proc. SPIE 9255, XX International Symposium on High-Power Laser Systems and Applications 2014, 92551P (3 February 2015); doi: 10.1117/12.2071248; https://doi.org/10.1117/12.2071248
PROCEEDINGS
7 PAGES


SHARE
RELATED CONTENT

High-power PROGRESS Nd:glass laser facility
Proceedings of SPIE (December 30 1998)
Laser diode pumped 10 J X 10 Hz Nd glass...
Proceedings of SPIE (April 03 2000)
Multipass slab Nd:glass amplifier
Proceedings of SPIE (July 23 1999)
Performance of the beamlet laser, a test bed for the...
Proceedings of SPIE (April 12 1996)

Back to Top