Phasenrauschunterdrückung in Photodetektionsketten mit Optischem Pilotton

Details

Veröffentlichungs-Nr.

EP4239280

Aktenzeichen

EP22160237

Anmeldetag

4. März 2022

Veröffentlichung

4. Juni 2025

Erteilung

4. Juni 2025

Rechtsraum

EP

IPC

G01B9/02055

Abstract

Systems and methods for operating an optical arrangement (100) are described. An optical pilot tone with an original phase is applied to a detector arrangement (28) and received by the detector arrangement (28). The detector arrangement (28) senses a phase of the received optical pilot tone and determines a pilot tone delay between the phase of the received optical pilot tone and the original phase of the optical pilot tone. A delay correction value is determined based on the determined pilot tone delay. The delay correction value is applied to a signal of a first beam (19) containing measurement information received by the detector arrangement (28), wherein the detector arrangement (28) senses a phase or time delay of the first beam. Thereby, phase noise introduced by the detector in the optical and electrical domain of the optical arrangement (100) into the first beam can be quantified and reduced.

Anmelder

Firma

Airbus Defence and Space GmbH

Land

🇩🇪 Deutschland

Fachgebiete