30 October 2001 Fine design of diffractive optical element for beam transform
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Proceedings Volume 4443, Laser Beam Shaping II; (2001); doi: 10.1117/12.446750
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States
Abstract
Diffractive optical element (DOE) can be used for beam transform to obtain a certain required focused spot. The phase design of the DOE can be considered as an optimization problem and can be optimized by many kinds of algorithms. In optimization, the intensities of the sampling points are optimized to be consistent with the required beam transform, but the other points are not consistent with such demand. In this paper, fine design of the DOE is completed with a new sampling interval on the focal plane. The simulated results show that the intensity of any point on the focal plane is fully filled with the required beam transform, besides the used sampling points in the optimization.
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Qiaofeng Tan, Yingbai Yan, Guofan Jin, Duanyi Xu, "Fine design of diffractive optical element for beam transform", Proc. SPIE 4443, Laser Beam Shaping II, (30 October 2001); doi: 10.1117/12.446750; https://doi.org/10.1117/12.446750
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KEYWORDS
Diffractive optical elements

Optical design

Fourier transforms

Optimization (mathematics)

Optical simulations

Laser applications

Laser manufacturing

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