Laser beam shaping using a novel intra-cavity adaptive optical system
Many high power lasers typically suffer from reduced beam quality due to thermally induced aberrations. Adaptive optics is an effective way to compensate the dynamic aberration. But adaptive optics has not found widespread acceptance due to the cost and complexity. It is not until recently that can the problem be readily solved with the development of microelectromechanical systems (MEMS) based on silicon micromaching technology. Calculations are performed showing the effect of Zernike aberrations on laser beam quality. We describe an intra-cavity adaptive optical system based on a MEMS deformable mirror to compensate the thermally induced aberrations.The experimental result showed that the output power was increased nearly 3 times and the beam quality was improved obviously by closed loop automatic control of the adaptive optical system.
Jie Li Xiqu Chen
Department of Electrical and Information Engineering Wuhan Polytechnic University Wuhan, China Department of Mathematics and Physics Wuhan Polytechnic University Wuhan, China
国际会议
武汉
英文
80-83
2010-05-10（万方平台首次上网日期，不代表论文的发表时间）