Design of diffractive optical elements for optical interconnections

Weidong Qu; Qiong Gao; Yanxiu Zhang; Bing Wang; Na Ma; Juanfeng Wang; Ping Lei; Zhendong Ding; Bing Bai

doi:10.1117/12.2263940

5 January 2017 Design of diffractive optical elements for optical interconnections

Weidong Qu, Qiong Gao, Yanxiu Zhang, Bing Wang, Na Ma, Juanfeng Wang, Ping Lei, Zhendong Ding, Bing Bai

Proceedings Volume 10244, International Conference on Optoelectronics and Microelectronics Technology and Application; 1024405 (2017) https://doi.org/10.1117/12.2263940
Event: International Conference on Optoelectronics and Microelectronics Technology and Application, 2016, Shanghai, China

Abstract

Diffractive optical elements (DOEs) can realize beam shaping with higher light efficiency, strong flexibility of diffraction pattern, and is suitable to be used in optical interconnections to split beams. In order to increase the intensity uniformity of the split beams, a hybrid algorithm merging Gerchberg-Saxton (GS) algorithm with gradient method is presented based on the sampling rule different from the existing optimization algorithms. By controlling N extra points with zero amplitude besides the original N sampling points on the input plane, and finally the sampling pitch on the Fourier plane is half of that of the conventional sampling rule. Then the N extra points on the Fourier plane will be controlled. Finally spot array with high intensity uniformity can be realized with the proposed algorithm. Simulation results demonstrate the good performance of the proposed algorithm.

Citation Download Citation

Weidong Qu, Qiong Gao, Yanxiu Zhang, Bing Wang, Na Ma, Juanfeng Wang, Ping Lei, Zhendong Ding, and Bing Bai "Design of diffractive optical elements for optical interconnections", Proc. SPIE 10244, International Conference on Optoelectronics and Microelectronics Technology and Application, 1024405 (5 January 2017); https://doi.org/10.1117/12.2263940

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