Flat-top laser beam generated by coherent beam combining of Gaussian lasers |
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| Authors: | Kun Gao Lixin Xu Rui Zheng Guoliang Chen Huan Zheng Hai Ming Institute of Photonics |
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| Institution: | Kun Gao Lixin Xu Rui Zheng Guoliang Chen Huan Zheng , Hai Ming Institute of Photonics,Department of Physics,University of Science , Technology of China,Hefei 230026,China |
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| Abstract: | We present a flat-top laser beam generation scheme using coherent beam combining of hexagonally arranged Gaussian lasers.To produce a beam with a flat-top profile,we optimize the amplitude and phase of each unit laser using the least-square method.Simulation results show that with 13 unit lasers,a beam with the flatness of less than 1%in the optimizing region can be achieved.The main lobe contains over 95% of the total power.The scheme requires no external beam shaping element and has the potential to be de... |
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