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Universal dimension reduced phase compensation algorithm for an optical phased array

delete2022-05-31
delete3
PRE
AI
Y
Yanwei Huang
K
Kangzhe Wang
Q
Qianying Yan
Y
Yifan Wang
X
Xiangru Wang *
H
Haipeng Liu
J
Jijun Feng
F
Fuling Zhang
Z
Zhihua Feng
G
Georgios A. Siviloglou
DOI：10.1364/OL.460324delete
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Abstract

Abstract

En 中文
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 inline optimization. We envision it to become a general method on different platforms. (C) 2022 Optica Publishing Group
Keywords:
GRADIENT DESCENT OPTIMIZATION
ADAPTIVE OPTICS
CALIBRATION

Journal

Optics Letters cover
Optics Letters
IF:
3.3
Papers:
4.0W
Citations:
7.6W

Organization

No organization information available