CF202645736
Novel architecture and signal processing for mobile optical telecommunications
D-97
Doctorate Full Doctorate
Disciplines
Numerical analysis
Laboratory
Laboratoire Signal Protocoles et Plateformes Radio Département Systèmes (LETI)
Host institution
Université Paris-Saclay

Description

Free-Space Optical Communications (FSO) rely on transmitting data via light between two distant points, eliminating the need for fibers or cables. This approach is particularly valuable when wired connections are impractical or prohibitively expensive. However, these links are highly susceptible to atmospheric conditions—fog, rain, dust, and thermal turbulence—which attenuate or distort the light beam, significantly degrading communication quality. Current solutions remain costly and limited, both in terms of optical compensation hardware and signal processing algorithms. Within this framework, the thesis aims to design high-performance, robust mobile optical links capable of adapting to dynamic and disturbed environments. The study will focus on leveraging Silicon-based Optical Phased Arrays (OPAs)—a technology derived from low-cost LiDAR systems—offering a promising path toward compact, integrated, and cost-effective architectures. The primary focus of the research will be developing advanced algorithmic approaches for signal processing and compensation. The PhD candidate will be tasked with designing a dedicated simulation environment to evaluate and validate architectural choices and algorithmic strategies before practical experimentation. The overarching goal is to propose an integrated, flexible, and reliable architecture that ensures uninterrupted optical communication in motion, with potential applications in aerospace, space, and terrestrial domains.

Funded offer

Funding type
CEA

Dates

Application deadline 30/11/26

Duration36 months

Start date01/10/26

Creation date05/01/26

Languages

Level of french requiredNone

Level of English requiredNone

Opportunity to make his thesis in English

Miscellaneous

Annual tuition fee391 € / year

Website

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