Abstract
Optical phased arrays (OPAs) can achieve non-mechanical beam deflection. Many types of OPA face the problem of low deflection efficiency due to the phase distortion induced by mutual coupling between nearby channels. In this Letter, a universal optimization algorithm is proposed to compensate for this structural phase distortion, in which the adjacent sampling principal component analysis (AS-PCA) method is introduced to reduce the dimension of the solution space. Simulations and experimental results on different classes of OPA verified that this method can considerably optimize the deflection beam with a rapid convergence speed, irrespective of the scale of OPA, and maintain the universal feature, laying the foundation for large-scale, high-density OPA in-line optimization. We envision it to become a general method on different platforms.
© 2022 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Yanwei Huang, Kangzhe Wang, Xiaoxian He, Qianying Yan, Yifan Wang, Zhiqing Liang, Rusheng Zhuo, Qinggui Tan, Junxiang Hu, Xiangru Wang, and Shihan Gao
Appl. Opt. 61(6) 1583-1592 (2022)
Mathias Prost, Jon Øyvind Kjellman, Sarvagya Dwivedi, Aleksandrs Marinins, Hemant Kumar Tyagi, Tangla David Kongnyuy, Philippe Soussan, Marcus S. Dahlem, Xavier Rottenberg, and Roelof Jansen
Opt. Lett. 47(23) 6081-6084 (2022)
Hongdong Zhang, Rui Wang, Kunyang Du, Yaoyuan Zhang, Ruitao Jiang, and Yuanyang Li
Opt. Express 32(4) 5659-5670 (2024)