Optimal Design of Small-Aperture Optical Terminals for Free-Space Links

被引：0

作者：

Frost, Alex ^{[1
]}

Dix-Matthews, Benjamin ^{[1
]}

Walsh, Shane ^{[1
]}

Gozzard, David ^{[1
]}

Schediwy, Sascha ^{[1
]}

机构：

[1] Univ Western Australia, Int Ctr Radio Astron Res, Perth 6009, Australia

来源：

PHOTONICS | 2024年 / 11卷 / 11期

关键词：

atmospheric turbulence; free-space optical; single-mode fibre; COMMUNICATION; SCINTILLATION; TURBULENCE; TRACKING; PHASE; LEO;

D O I：

10.3390/photonics11111035

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the generalised design of low-complexity, small-aperture optical terminals intended for kilometre-scale, terrestrial, free-space laser links between fixed and dynamic targets. The design features single-mode fibre coupling of the free-space beam, assisted by a fast-steering, tip/tilt mirror that enables first-order turbulence suppression and fine target tracking. The total power throughput over the free-space link and the scintillation index in fibre are optimised. The optimal tip/tilt correction bandwidth and range, aperture size, and focal length for a given link are derived using analytical atmospheric turbulence modelling and numerical simulations.

引用

页数：13

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