A new method of coherent summation of laser beams by diffraction optical element

A new method of coherent summation of laser beams is proposed. Two-dimension numerical simulation based on the conjugate gradient algorithm shows that the combination efficiency is about 94.8%, and an error less than 2.4% with a 16-level phase quantized diffraction optical element. Error analysis ha...

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Bibliographic Details
Published in:Optics and lasers in engineering 2004-02, Vol.41 (2), p.289-295
Main Authors: Lu, Jianye, Shen, Zuochun, Zhou, Yanzhou, Dong, Yunhua, Gao, Huide, Ma, Zuguang
Format: Article
Language:English
Subjects:
Beam characteristics: profile, intensity, and power
spatial pattern formation
Coherent addition
Conjugate gradient algorithm
Diffractive optical element
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Laser optical systems: design and operation
Optics
Physics
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Summary:A new method of coherent summation of laser beams is proposed. Two-dimension numerical simulation based on the conjugate gradient algorithm shows that the combination efficiency is about 94.8%, and an error less than 2.4% with a 16-level phase quantized diffraction optical element. Error analysis has also been performed.
ISSN:0143-8166
1873-0302
DOI:10.1016/S0143-8166(02)00202-6