Paper
5 September 2002 Laser resonator with a periodically vibrating roof mirror for beam shaping
Xuefen Zou, Yaoning Zhang, Donglan Hou, Guangzhi Zhu, ZuHai Cheng, Wenfeng Yu
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Abstract
High-power CO2 laser beam intensity distribution is nonuniform, which is caused by inhomogeneously gain medium. Aiming at that nonuniform distribution, a new resonator consisting of a roof mirror is designed. At the same time the beam intensity distribution is modified to obtain greater temporal uniformity by reflector's periodically vibrating. Output modes of both the resonator with a pair of parallel-plane mirrors and the former new resonator are obtained by numerical simulation calculation with Fox-Li iteration. Simulated results are presented that with the resonator uniformization ofthe beam intensity distribution can be achieved.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xuefen Zou, Yaoning Zhang, Donglan Hou, Guangzhi Zhu, ZuHai Cheng, and Wenfeng Yu "Laser resonator with a periodically vibrating roof mirror for beam shaping", Proc. SPIE 4914, High-Power Lasers and Applications II, (5 September 2002); https://doi.org/10.1117/12.481783
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KEYWORDS
Resonators

Mirrors

Beam shaping

High power lasers

Diffraction

Carbon dioxide lasers

Laser resonators

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