一维阵列涡旋光束在海面大气中的传输特性
Propagation properties of one-dimensional array vortex beams in a marine atmosphere
摘要
Abstract
Compared to a single vortex beam,vortex array beams can increase the information transmission capacity.Therefore,studying the propagation properties of vortex array beams is significant for their optical communication applications.In this paper,we select the helical Ince-Gaussian(HIGn,n)modes of order n and simulate the marine atmosphere turbulence using the power spectrum of the refractive index fluctuations in the marine atmosphere.The changes in intensity,phase,scintillation index and spot centroid wander of a one-dimensional array vortex beam in marine atmospheric turbulence have been investigated systematically by using the phase screen method.We find that(1)an increase in either the turbulence intensity or atmospheric turbulence inner scale enhances both the scintillation index and spot centroid wander standard deviation for HIGn,n modes;(2)the scintillation index of HIGn,n mode with odd n decreases with increasing mode order,and is higher than that of HIGn,n mode for even n;(3)the HIGn,n mode with order n>1 has better stability than the LG0,1 mode;and(4)the higher the mode order,the smaller the standard deviation of spot centroid wander of HIGn,n mode.In addition,we perform comparative study on the propagation performance of the linear ar-ray vortex beams(LAVBs)and HIG beams.Our study indicates that although LAVBs have better propaga-tion performance than HIG beams,the unique structures of HIG beams can be applied to various application scenarios.Finally,the effects of both the ellipticity parameter and elliptic ring number on the propagation of the HIG modes are explored and analyzed.The results show that increasing either the ellipticity parameter or elliptic ring number is beneficial to improving the anti-turbulence ability of the HIG modes.These results of-fer significant guidance for the offshore vortex beams application.关键词
大气光学/螺旋因斯高斯模式/阵列涡旋光束/闪烁因子/湍流Key words
atmospheric optics/helical ince-gaussian mode/array vortex beam/scintillation index/turbu-lence分类
数理科学引用本文复制引用
侯政诚,张明明,白胜闯,厉淑贞,刘俊,胡友友..一维阵列涡旋光束在海面大气中的传输特性[J].中国光学（中英文）,2024,17(2):300-311,12.基金项目
国家自然科学基金青年基金(No.12104189,No.12104190) （No.12104189,No.12104190）
江苏省自然科学基金青年基金(No.BK20190953,No.BK20210874) （No.BK20190953,No.BK20210874）
江苏省产学研合作项目(No.BY2020680) （No.BY2020680）
江苏省高等学校自然科学研究面上项目(No.20KJB140008) （No.20KJB140008）
浙江省光电探测材料及器件重点实验室开放基金(No.KLPMD2105)Supported by Youth Fund of National Natural Science Foundation of China(No.12104189,No.12104190) （No.KLPMD2105）
Youth Fund of Natural Science Foundation of Jiangsu Province(No.BK20190953,No.BK20210874) （No.BK20190953,No.BK20210874）
Jiangsu Province Industry University Research Cooperation Project(No.BY2020680) （No.BY2020680）
General Project of Natural Sci-ence Research in Colleges and Universities of Jiangsu Province(No.20KJB14008) （No.20KJB14008）
Opening Project of Key Laboratory of Photoelectric Materials and Devices of Zhejiang Province(No.KLPMD2105) （No.KLPMD2105）
