Mr. Jiake Wang Profile

Jiake Wang

at Changchun University of Science and Technology

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Proceedings Article | 19 October 2016 Paper

Design method of coaxial reflex hollow beam generator

Jiake Wang, Jia Xu, Yuegang Fu, Wenjun He, Qifan Zhu

Proceedings Volume 10154, 101540L (2016) https://doi.org/10.1117/12.2246419

KEYWORDS: Laser scattering, Scattering

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In view of the light energy loss in central obscuration of coaxial reflex optical system, the design method of a kind of hollow beam generator is introduced. First of all, according to the geometrical parameter and obscuration ratio of front-end coaxial reflex optical system, calculate the required physical dimension of hollow beam, and get the beam expanding rate of the hollow beam generator according to the parameters of the light source. Choose the better enlargement ratio of initial expanding system using the relational expression of beam expanding rate and beam expanding rate of initial system; the traditional design method of the reflex optical system is used to design the initial optical system, and then the position of rotation axis of the hollow beam generator can be obtained through the rotation axis translation formula. Intercept the initial system bus bar using the rotation axis after the translation, and rotate the bus bar around the rotation axis for 360°, so that two working faces of the hollow beam generator can be got. The hollow beam generator designed by this method can get the hollow beam that matches the front-end coaxial reflex optical system, improving the energy utilization ratio of beam and effectively reducing the back scattering of transmission system.

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