Phase-only Beam Optimization for GaAs Optical Waveguide Phase Array

摘要：

　　Optical waveguide phased arrays have highlighted advantages than other electro-optical material optical arrays in scanning angle,response speed etc.For diffraction fields of uniform waveguide have strong side-lobes,which have influence on scanning performance of phased arrays.So side-lobes compression is one of the main issues for optical waveguide phased array device development.Based on photoelectric effect,the relations of voltage and phase are analysised.Phase-only array beam control using a Genetic Algorithm,an efficiency-optimized scheme,for uniform optical waveguide array with process errors is proposed.Phase distributions are arranged as randomly increasing distributions and random distributions.The results show phase-only optical waveguide arrays control,without the reconstruction of devices,has fine side-lobes compression effects with-9.89dB side-lobes intensity ratio.So the performance of scanning beams gets well improved.

关键词： Optical phased array Optical waveguide array side-lobes compression phase-only control Genetic Algorithm (GA)

作者: Yong Zhang Jingjing Xue Zhensen WU Yushi Zhang

作者单位: Xidian University,Xian 710071 ,China China Research Institute of Radiowave Propagation,Tsingtao 266109,China

会议类型: 国际会议

会议名称: 2012 International Meeting on Opto-Electronics Engineering and Materials Research(OEMR2012)(2012光电工程与材料国际会议)

会议地点: 沈阳

会议语种:英文

页码: 316-319

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）