Patent · US Active

Temperature and strain sensing optical fiber and temperature and strain sensor

US9835502B2 · kind B2 · utility

0Cited by

12References

13Claims

0Family size

Assignee

Draka Comteq B.V. · NL

Inventors

Ekaterina Burov · Boulogne-Billancourt, FR
Alain Pastouret · Massy, FR
Louis-Anne de Montmorillon · Paris, FR

Key dates

Filing date	Jan 19, 2012
Grant date	Dec 5, 2017
Priority date	—
Expiry date	Oct 16, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01K11/322
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Disclosed is a temperature and strain sensing optical fiber including a first doped radial zone (Z1) with an associated first Brillouin shift (BS1) caused by the doping of said zone (Z1) and a second doped radial zone (Z2) with associated second Brillouin shift (BS2) caused by the doping of said second zone (Z2). The concentration and/or composition of the doping materials in said first and second radial zones are chosen such that the first Brillouin Shift (BS1) is different from the second Brillouin Shift (BS2) for all variations of said Brillouin Shifts (BS1, BS2) caused by temperature and/or strain.

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