Über Fading Widerstandsfähige Schaltungen für Kohärente Optische Nachrichtenübertragung

Details

Veröffentlichungs-Nr.

EP4542880

Aktenzeichen

EP23315393

Anmeldetag

20. Oktober 2023

Veröffentlichung

23. April 2025

Rechtsraum

EP

IPC

H04B10/118H04B10/61H04B10/532H04J14/06

Abstract

Apparatus is provided for transmitting and/or for receiving data over a free-space optical link. An optical data transmitter generates duplicate digital data streams carrying a same digital data sequence with a relative temporal offset and mixes them onto two different polarization channels according to a preselected linear mixing rule. An optical data receiver demodulates first and second digital streams from the two polarization channels and unmixes the demodulated data, to produce first and second output digital data streams according to a preselected linear unmixing rule. The receiver applies a quality indicator to select between segments of the respective output digital data streams that correspond to the same transmitted data sequence.

Anmelder

Firma

Nokia Solutions and Networks Oy

Land

🇫🇮 Finnland

Fachgebiete