Patent · US Active

High-rate distributed acoustic sensing using high-power light pulses

US11320302B2 · kind B2 · utility

1Cited by

2References

17Claims

0Family size

Assignee

AiQ Dienstleistungen UG (haftungsbeschränkt) · DE

Inventor

Gregor Cedilnik · Prien am Chiemsee, DE

Key dates

Filing date	Oct 8, 2019
Grant date	May 3, 2022
Priority date	—
Expiry date	Aug 17, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG01L1/242
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An arrangement for high rate fiber optical distributed acoustic sensing includes an optical fiber, a light launch module adapted to inject a first coherent light pattern into the optical fiber and to inject a second coherent light pattern into the optical fiber while first Rayleigh backscatter light of the first light pattern is propagating in the optical fiber, wherein the first coherent light pattern and the second coherent light pattern have a light pattern power above a nonlinear effect related power limit; and a detector adapted to detect the first Rayleigh backscatter light and to detect second Rayleigh backscatter light of the second light pattern.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.