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Proceedings Paper

Binary optics beam mode transformer and its application in high-power laser processing
Author(s): Wenjin Liu; Yangxiang Li; Jie Zhao; Haicheng Zhang; ShuShen Deng; Pin Long; Yansong Cheng
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Paper Abstract

Based on the newly developed binary optics, a new kind of optics device used for laser beam mode transforming has been developed. This kind of binary optics device is worked with the principle of optical diffraction. It can be used to transform very efficiently the beam mode of high power laser of long wavelength. Using such a binary optics device of GaAs, a circle beam of high power CO2 laser can be transformed into a line-shaped narrow beam with uniform power distribution. Using this device to do the treatments of laser hardening, alloying and cladding, the treating efficiency can be greatly increased. A very uniform strengthening layer in hardening depth, hardness and microstructure can be obtained. The tempering effect, which will occur in the overlapped region when treating a large area with the common overlapping process, can be avoided.

Paper Details

Date Published: 15 August 1998
PDF: 5 pages
Proc. SPIE 3550, Laser Processing of Materials and Industrial Applications II, (15 August 1998); doi: 10.1117/12.317891
Show Author Affiliations
Wenjin Liu, Tsinghua Univ. (China)
Yangxiang Li, Tsinghua Univ. (China)
Jie Zhao, China Da Heng Corp. (China)
Haicheng Zhang, China Da Heng Corp. (China)
ShuShen Deng, China Da Heng Corp. (China)
Pin Long, Beijing Communications Univ. (Canada)
Yansong Cheng, Physics Research Institute (China)

Published in SPIE Proceedings Vol. 3550:
Laser Processing of Materials and Industrial Applications II
ShuShen Deng; S. C. Wang, Editor(s)

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