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Proceedings Paper

Improved two-dimensional orthogonal cylindrical lens arrays optical system with controllable focus profile for uniform irradiation
Author(s): Jianzhou Zheng; Qingxu Yu; Bin Dong; Xiaojun Cao; Shouhua Guan; Qi Yang
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Paper Abstract

A novel orthogonal cylindrical lens arrays (OCLA) system has been proposed to obtain two-dimensional (2D) uniform irradiation with controllable focus width and transformation of beam-shape at the same time. The system is composed of two pairs of mutual OCLA and aspheric lens. Based on adaxial matrix optics and scalar quantity diffraction integral theory, the principle of this system with controllable focus profile is analyzed and optimum design of system parameter are presented in detail respectively. The simulated results show that by a suitable choice of system parameters two-dimensional uniform focusing of laser beams with controllable focus width from several hundred microns to several millimeters can be achieved. And the system converts a circular laser beam into a flat-top square focal spot of steeper edges without side lobes. In order to confirm our theoretical considerations, with Zemax optical design software, confirm regular focus width with the variation of the distance between two groups of mutual OCLA, the shape and intensity distribution of focal spot is confirmed in agreement quite well with theory.

Paper Details

Date Published: 21 May 2009
PDF: 10 pages
Proc. SPIE 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 72820Y (21 May 2009); doi: 10.1117/12.830816
Show Author Affiliations
Jianzhou Zheng, Dalian Univ. of Technology (China)
Dalian Nationalities Univ. (China)
Qingxu Yu, Dalian Univ. of Technology (China)
Bin Dong, Dalian Nationalities Univ. (China)
Xiaojun Cao, Dalian Nationalities Univ. (China)
Shouhua Guan, Dalian Univ. of Technology (China)
Dalian Nationalities Univ. (China)
Qi Yang, Dalian Nationalities Univ. (China)


Published in SPIE Proceedings Vol. 7282:
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; John M. Schoen; Yoshiharu Namba; Shengyi Li, Editor(s)

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