一种折射式激光高斯光束平顶整形器_尚建力一种折射式激光高斯光束平顶整形器_尚建力.pdf

37 10 Vo l. 37, N o. 10 2010 10 CHINESEJOURNAL OF LASERS October, 20 10 : 0258- 7025( 2010) 10- 2543- 07 一种折射式激光高斯光束平顶整形器 1, 2 1, 2 1, 2 1, 2 1, 2 1, 2 1, 2 尚建力 朱 晓 陈 鹏 朱广志 王 伟 任松青 严 琼 1 , 430074 ; 2 , 430074 , , , , , , ; ; ; ; O435 A doi: 10. 3788/ CJ 2543 Refractive Optical Reshaper that Converts a Laser Gaussian Beam to a Flat- Top Beam 1,2 1,2 1,2 1, 2 Shang Jianli Zhu iao Chen Peng Zhu Guangzhi 1, 2 1,2 1,2 Wang Wei Ren Songqing Yan Qiong 1 Instit ute of Opt oelect on ics Scien ce a nd En ginee ing , Hu azhon g Un ive sity of Science an d T echnology , Wuha n , Hu bei 430074 , China 2 Na tion al Engin ee in g R esea ch Cent e f o La se P ocessin g , Wu han , Hubei 430074, Chin a Abstract In order to convert a laser Gaussian beam to a collimated flat- top beam, a new reshaper with only one aspheric lens is designed based on double aspheric lenses reshaper. In the theoretical model, a more accurate calculation method of curves function of asphericlens is given. The reshaping effection, brought by the change from the parameter of system and laser beam, is given through numerical analysis and optical design software simulation. It is illustrated that the flatten degree of the laser beamcan be improved apparently using this new kind of reshaper.