Combined effect of turbulence and aerosol on free-space optical links

被引:34
作者
Libich, Jiri [1 ]
Perez, Joaquin [2 ]
Zvanovec, Stanislav [1 ]
Ghassemlooy, Zabih [3 ]
Nebuloni, Roberto [4 ]
Capsoni, Carlo [5 ]
机构
[1] Czech Tech Univ, Dept Electromagnet Fields, Fac Elect Engn, Tech 2, Prague, Czech Republic
[2] Univ Politecn Valencia, iTEAM Res Inst, Photon Res Labs, E-46022 Valencia, Spain
[3] Northumbria Univ, Fac Engn & Environm, Opt Commun Res Grp, NCRLab, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England
[4] CNR, Ist Elettron & Ingn Informaz & Telecomunica, I-20133 Milan, Italy
[5] Politecn Milan, Dipartimento Elettron Informaz & Bioingn, I-20133 Milan, Italy
关键词
COMMUNICATION;
D O I
10.1364/AO.56.000336
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Despite the benefits of free-space optical (FSO) communications, their full utilization is limited by the influence of atmospheric weather conditions, such as fog, turbulence, smoke, snow, etc. In urban environments, additional environmental factors such as smog and dust particles due to air pollution caused by industry and motor vehicles may affect FSO link performance, which has not been investigated in detail yet. Both smog and dust particles cause absorption and scattering of the propagating optical signal, thus resulting in high attenuation. This work investigates the joint impact of atmospheric turbulence and dust particle-imposed scattering on FSO link performance as part of the last-mile access network in urban areas. Propagation of an optical wave is at first analyzed based on the microphysic approach, and the extinction caused by small particles is determined. An experimental measurement campaign using a dedicated test chamber is carried out to assess FSO link performance operating wavelengths of 670 nm and 830 nm and under dust and turbulent conditions. The measured attenuation and the Q factor in terms of the velocity of particle flow and turbulence strength are analyzed. We show that for an airflow of 2 m/s, the Q factor is almost 3.5 higher at the wavelength of 830 nm than at 670 nm. However, for a wavelength of 670 nm, the FSO link is less affected by the increase in airflow compared to 830 nm. The Q factor reduces with turbulence. Under similar turbulence conditions, for ash particles, the Q factor is higher than that of sand particles. (C) 2017 Optical Society of America
引用
收藏
页码:336 / 341
页数:6
相关论文
共 50 条
[41]   Automatic turbulence mitigation for coherent free-space optical links using crystal-based phase conjugation and fiber-coupled data modulation [J].
Zhou, Huibin ;
Duan, Yuxiang ;
Song, Hao ;
Su, Xinzhou ;
Zhao, Zhe ;
Zou, Kaiheng ;
Song, Haoqian ;
Zhang, Runzhou ;
Boyd, Robert W. ;
Tur, Moshe ;
Willner, Alan E. .
OPTICS LETTERS, 2023, 48 (08) :2194-2197
[42]   Analyzing the receiving power of rectilinear mobile/free-space optical links by considering the effect of laser beam divergence and deflection angles [J].
Fu, Xinghu ;
Wang, Tingyun ;
Guo, Qiang ;
Chen, Zhenyi ;
Pang, Fufei .
OPTICAL ENGINEERING, 2012, 51 (04)
[43]   Urban Free-Space Optical Network Optimization [J].
Marbel, Revital ;
Ben-Moshe, Boaz ;
Grinshpoun, Tal .
APPLIED SCIENCES-BASEL, 2020, 10 (21)
[44]   Polar-Coded Transmission over 7.8-km Terrestrial Free-Space Optical Links [J].
Fujita, Shingo ;
Okamoto, Eiji ;
Takenaka, Hideki ;
Endo, Hiroyuki ;
Fujiwara, Mikio ;
Kitamura, Mitsuo ;
Shimizu, Ryosuke ;
Sasaki, Masahide ;
Toyoshima, Morio .
PHOTONICS, 2023, 10 (04)
[45]   TCP over Free-space Optical Links with ARQ and AMC: A Cross-layer Performance Analysis [J].
Nguyen, Chuyen T. ;
Mai, Vuong V. ;
Pham, Anh T. .
PROCEEDINGS OF THE 2016 INTERNATIONAL CONFERENCE ON ADVANCED TECHNOLOGIES FOR COMMUNICATIONS (ATC), 2016, :80-84
[46]   Turbulence-Resistant All Optical Relaying Based on Few-Mode EDFA in Free-Space Optical Systems [J].
Cai, Shanyong ;
Zhang, Zhiguo ;
Chen, Xue .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2019, 37 (09) :2042-2049
[47]   Self-adaptive integrated photonic receiver for turbulence compensation in free space optical links [J].
Martinez, Andres Ivan ;
Cavicchioli, Gabriele ;
Seyedinnavadeh, Seyedmohammad ;
Zanetto, Francesco ;
Sampietro, Marco ;
D'Acierno, Alessandro ;
Morichetti, Francesco ;
Melloni, Andrea .
SCIENTIFIC REPORTS, 2024, 14 (01)
[48]   Mitigation of dispersion and turbulence in a hybrid optical fibre and free-space optics link using electronic equalisation [J].
Dong-Nhat Nguyen ;
Zvanovec, Stanislav ;
Ghassemlooy, Zabih .
OPTIK, 2019, 196
[49]   Coherent Heterodyne Multilevel Polarization Shift Keying With Spatial Diversity in a Free-Space Optical Turbulence Channel [J].
Tang, Xuan ;
Ghassemlooy, Zabih ;
Rajbhandari, Sujan ;
Popoola, Wasiu O. ;
Lee, Chung Ghiu .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2012, 30 (16) :2689-2695
[50]   Performance Analysis of Free-Space Optical Links Over Lognormal-Shadow Rician ((M)over-tilde-$) Turbulence Channels With Generalized Pointing Errors [J].
Miao, Maoke ;
Chen, Xiao-Yu ;
Yin, Rui ;
Yuan, Jiantao .
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2024, 73 (12) :18688-18704