Detection of multiple coaxial optical vortices with a Shack-Hartmann sensor in atmospheric turbulence

被引:0
作者
Cisternas, Jaime [1 ]
Funes, Gustavo [1 ]
Anguita, Jaime A. [1 ,2 ]
机构
[1] Univ Los Andes, Monsenor Alvaro del Portillo 12455, Santiago, Chile
[2] MIRO, Concepcion, Chile
来源
LASER COMMUNICATION AND PROPAGATION THROUGH THE ATMOSPHERE AND OCEANS VII | 2018年 / 10770卷
关键词
Optical angular momentum; Shack-Hartmann sensor; wave-front sensing; ORBITAL ANGULAR-MOMENTUM; POSITION DETECTION; VORTEX; PROPAGATION;
D O I
10.1117/12.2321675
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The Shack-Hartmann sensor has proved to be a valuable wavefront detector in the context of adaptive optics. In this work we explore its capacity of characterizing helical wavefronts and thus identifying orbital-angularmomentum (OAM) states under certain conditions in the context of OAM-based free-space optical communication links. We propose the estimation of \local OAM", which avoids the reconstruction of the phase field in the ShackHartmann array. The proposed method does not require prior knowledge of the OAM state, waist size or center location. We show the results of outdoor experiments for single-mode and two-mode OAM beams in turbulent conditions at which reliable detection is still feasible. We comment on the quality of detection as a function of turbulence strength, propagation distance, Shack-Hartmann resolution and number of acquisitions.
引用
收藏
页数:8
相关论文
共 14 条
[1]   ORBITAL ANGULAR-MOMENTUM OF LIGHT AND THE TRANSFORMATION OF LAGUERRE-GAUSSIAN LASER MODES [J].
ALLEN, L ;
BEIJERSBERGEN, MW ;
SPREEUW, RJC ;
WOERDMAN, JP .
PHYSICAL REVIEW A, 1992, 45 (11) :8185-8189
[2]   Iteratively weighted centroiding for Shack-Hartmann wave-front sensors [J].
Baker, K. L. ;
Moallem, M. M. .
OPTICS EXPRESS, 2007, 15 (08) :5147-5159
[3]   An SLM-based Shack-Hartmann wavefront sensor for aberration correction in optical tweezers [J].
Bowman, Richard W. ;
Wright, Amanda J. ;
Padgett, Miles J. .
JOURNAL OF OPTICS, 2010, 12 (12)
[4]   Detection of phase singularities with a Shack-Hartmann wavefront sensor [J].
Chen, Mingzhou ;
Roux, Filippus S. ;
Olivier, Jan C. .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2007, 24 (07) :1994-2002
[5]   Laguerre-Gauss and Bessel-Gauss beams propagation through turbulence: analysis of channel efficiency [J].
Doster, Timothy ;
Watnik, Abbie T. .
APPLIED OPTICS, 2016, 55 (36) :10239-10246
[6]   Vortex beam propagation through atmospheric turbulence and topological charge conservation [J].
Gbur, Greg ;
Tyson, Robert K. .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2008, 25 (01) :225-230
[7]   Correlation matching method for high-precision position detection of optical vortex using Shack-Hartmann wavefront sensor [J].
Huang, Chenxi ;
Huang, Hongxin ;
Toyoda, Haruyoshi ;
Inoue, Takashi ;
Liu, Huafeng .
OPTICS EXPRESS, 2012, 20 (24) :26099-26109
[8]   Estimation of centroid positions with a matched-filter algorithm: relevance for aberrometry of the eye [J].
Leroux, C. ;
Dainty, C. .
OPTICS EXPRESS, 2010, 18 (02) :1197-1206
[9]   High-order optical vortex position detection using a Shack-Hartmann wavefront sensor [J].
Luo, Jia ;
Huang, Hongxin ;
Matsui, Yoshinori ;
Toyoda, Haruyoshi ;
Inoue, Takashi ;
Bai, Jian .
OPTICS EXPRESS, 2015, 23 (07) :8706-8719
[10]   Comparison of optical vortex detection methods for use with a Shack-Hartmann wavefront sensor [J].
Murphy, Kevin ;
Dainty, Chris .
OPTICS EXPRESS, 2012, 20 (05) :4988-5002