Adaptive-weight iterative algorithm for flat-top laser beam shaping
Adaptive-weight iterative algorithm for flat-top laser beam shaping
复制标题
平顶激光光束整形的自适应权重迭代算法
DOI:
10.1117/1.oe.51.7.074301
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发表时间:
2012-07
影响因子:
1.3
通讯作者:
Hongxin Zhang
中科院分区:
文献类型:
--
作者:
Dong Wang;Jian Zhang;Hongxin Zhang
An adaptive-weight fast-Fourier-transform-based iterative algorithm is proposed for far-field flat-top beam shaping. This algorithm inherits the projection optimization idea from the Gerchberg-Saxton algorithm, but the far-field amplitude for inverse fast Fourier transform is adaptively modified by using a novel optimized adaptive-weight strategy. First, the application of this method to square flat-top intensity-profile beam shaping is discussed as an example. The pure-phase distribution simulated by 100 iterations of this method concentrates 93.89% of the incident laser energy into the desired region and the root mean square error (RMSE) of the tailored flat-top intensity profile is 0.0094. Less than 20 iterations of this method concentrate more than 90% of the incident laser energy into the desired region and the RMSE of the tailored flat-top intensity profile is under 0.05. Then, the applicability of the method to designing the phase distributions for variable-shape or variable-diameter flat-top beam shaping is demonstrated.
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影响因子:
3.8
作者:
R. El-Agmy;H. Bulté;A. Greenaway;D. Reid
通讯作者:
R. El-Agmy;H. Bulté;A. Greenaway;D. Reid
影响因子:
1.3
作者:
M. Miler;I. Aubrecht;J. Pala
通讯作者:
M. Miler;I. Aubrecht;J. Pala
影响因子:
3.1
作者:
R. Gerchberg
通讯作者:
R. Gerchberg
影响因子:
3.6
作者:
Haotong Ma;Zejin Liu;Xiaojun Xu;Sanhong Wang;Changhai Liu
通讯作者:
Haotong Ma;Zejin Liu;Xiaojun Xu;Sanhong Wang;Changhai Liu
影响因子:
--
作者:
R. Cohn
通讯作者:
R. Cohn