Referenzierung Optischer Verlustleistungsmessungen mit Reflektometrischen Messungen

Details

Veröffentlichungs-Nr.

EP4636376

Aktenzeichen

EP25169385

Anmeldetag

9. April 2025

Veröffentlichung

22. Oktober 2025

Rechtsraum

EP

IPC

G01M11/00H04B10/071H04B10/073

Abstract

Methods and systems for referencing an optical power loss measurement (OPLM) system, and methods and systems for measuring an optical insertion loss of an optical device under test (DUT) using an OPLM system referenced as such. The herein-provided reflectometric one-cord referencing method combines the capabilities of an OPLM system with that of an Optical Time Domain Reflectometer (OTDR). A first test unit comprises an optical source that is used as the light source in the OPLM. A second test unit comprises a power meter which is used as the power meter in the OPLM measurement. Either the first or the second test unit comprises an OTDR acquisition device. The reflectometric one-cord reference measures the connector loss along the reference link using OTDR capabilities of the test unit(s). Once the power reference of the OPLM devices is obtained, the reflectometric one-cord reference method may determine the optical insertion loss of the DUT while eliminating the measured connector loss.

Anmelder

Firma

EXFO Inc.

Land

🇨🇦 Kanada

Fachgebiete