Passives Optisches Netzwerk mit Faserüberwachung an einer Empfangseinrichtung

Details

Veröffentlichungs-Nr.

EP4734399

Anmeldetag

16. Oktober 2025

Veröffentlichung

29. April 2026

Rechtsraum

EP

Abstract

A polarization sensing element (30, 30A) is proposed to be used with one or more receivers in a PON (10) system, a separate polarization sensing element located with selected receivers in a one-to-one association. The polarization sensing element (30, 30A) is configured to track polarization changes in received signals while still using the IM-DD based transceivers to maintain compatibility with current (as well as future) IM-DD based PONs. Polarization sensing at several PON (10) receivers may be used to monitor conditions at the fiber spans forming the ODN (16) and report abnormal" conditions that may arise from the fiber itself (e.g., from a severe bend in a fiber span) or environmental changes at a fiber location (e.g., vibrations, excessive temperatures changes).

Anmelder

Firma

Nokia Solutions and Networks Oy

Land

🇫🇮 Finnland