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Field conjugation adaptive arrays in free-space coherent laser communications
Belmonte Molina, Aniceto; Kahn, Joseph M.
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
We analyze the performance of adaptive field conjugation array receivers in coherent laser communications through the turbulent atmosphere. We consider coherent fiber arrays consisting of densely packed multiple subapertures,with each subaperture interfaced to a single-mode fiber. In a field conjugation fiber array, the single-mode fiber outputs are detected, and the photocurrents are adaptively co-phased and scaled, and then summed to mitigate signal fading associated with atmospheric turbulence and compensate for imperfect fiber coupling efficiency. We quantify how field conjugation processing improves performance in the presence of turbulence, as compared to a monolithic-aperture coherent receiver having an equal total cross-sectional area.
Àrees temàtiques de la UPC::Enginyeria electrònica::Optoelectrònica::Làser
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica
Field programmable gate arrays
Optoelectronics
Optoelectrònica
Comunicacions òptiques
info:eu-repo/semantics/publishedVersion
Artículo
IEEE Press. Institute of Electrical and Electronics Engineers
         

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