Improvement of coupling efficiency in free-space optical communication with a multi-actuator adaptive lens

被引：11

作者：

Moosavi, Seyed Ayoob ^{[1
,2
]}

Quintavalla, Martino ^{[2
]}

Mocci, Jacopo ^{[3
]}

Muradore, Riccardo ^{[3
]}

Saghafifar, Hossein ^{[1
]}

Bonora, Stefano ^{[2
]}

机构：

[1] Malek Ashtar Univ Technol, Opt & Laser Sci & Technol Res Ctr, Tehran 158751774, Iran

[2] CNR, Inst Photon & Nanotechnol, Via Trasea 7, I-35131 Padua, Italy

[3] Univ Verona, Dept Comp Sci, Str Le Grazie 15, I-37134 Verona, Italy

来源：

OPTICS LETTERS | 2019年 / 44卷 / 03期

关键词：

SINGLE-MODE FIBER; PERFORMANCE; FLUCTUATIONS; VERIFICATION;

D O I：

10.1364/OL.44.000606

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In free-space optical communication, the propagation of a laser beam through the atmosphere causes wavefront distortions that decrease the coupling efficiency (CE) from free space to single-mode fiber. This tremendously degrades the performance of the communication channel even in the case of weak turbulence regime. In this Letter, we demonstrate that a multi-actuator adaptive lens working in closed loop with a wavefront sensor can strongly reduce the effect of turbulence while reducing the system complexity with respect to correction systems using deformable mirrors or liquid crystal spatial light modulators. We obtain a three-fold increase in the CE in weak turbulence regime. (C) 2019 Optical Society of America

引用

页码：606 / 609

页数：4

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