首页》回顾》金属结构件的高性能快速响应激光修复技术

Going beyond the Beam quality limit of Spectral Beam Combining

演讲课题:Going beyond the Beam quality limit of Spectral Beam Combining

演讲人:佟存柱Cunzhu Tong

演讲摘要:

Spectral beam combining (SBC) is a simple and efficient way to realize power scaling and maintain the beam quality as that of single emitter, which has achieved 8 kW direct diode laser and multi- kWfiber lasers.Although SBC almost demonstrated the best beam quality for incoherent combining of lasers, the beam quality limit of SBC is still that of single emitter. In this talk, I will introduceour works on how to go beyond the beam quality limit of SBC. The off-axis SBC approaches based on the selective feedback and small angle V-shaped cavity will be given. The influence factors for the efficiency of SBC will be presented. The developmenttrend and the competition of direct diode lasers with the solid state lasers and fiber lasersarealso discussed.

佟存柱Cunzhu Tong

长春光学精密机械与物理研究所 博导

Cunzhu Tong, received his B.S. and M.S. degrees in physics from Chongqing University, and Ph.D. degree from the Institute of Semiconductors, Chinese Academy of Sciences (CAS). He was a research fellow with Nanyang Technological University (NTU), Singapore, from 2005 to 2009. After that he joined the University of Toronto, Canada, as a post-doctoral researcher. He became the professor of Hundred Talents Program in CAS in 2010 and was with the Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), CAS, Changchun, China. He was the distinguished elite professor of CAS and senior member of IEEE. He is the deputy director of State Key Lab of Luminescence and Applications, and also a reviewer of the National Key Research and Development Plan of China. He won several awards including the Outstanding Young Scientist Award selected by SCIENTIFIC CHINESE, the Excellent Award for Hundred Talents Program of CAS and the Important Achievements in China Optics 2015etc. He has authored and co-authored over 90 refereed journal papers and awarded 7 patents. His current research interests include the high beam-quality semiconductor lasers, beam combining, and semiconductor disk lasers.

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