Patent · US Active

Sagnac-ring fiber-optic interferometric system with Rayleigh length spaced polarizer

US10041816B2 · kind B2 · utility

1Cited by

4References

20Claims

0Family size

Assignee

IXBLUE · FR

Inventors

Pascal Simonpietri · Falaise, FR
Stephane Chouvin · Bagneux, FR
Cedric Molucon · Poissy, FR

Key dates

Filing date	Jul 6, 2015
Grant date	Aug 7, 2018
Priority date	—
Expiry date	Jul 6, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/211
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Disclosed is an optical fiber interferometric system including a light source (1), a fiber optic coil (8), a coil splitter (3), a photodetector (2), and a polarization filtering unit. According to an embodiment, the polarization filtering unit includes a first waveguide polarizer (51), at least one second thin-plate polarizer (52) and an optical waveguide section (12), the at least one second polarizer (52) being disposed in the Rayleigh zone between a first waveguide end (21) of the first polarizer (51) and a second waveguide end (22) of the optical waveguide section (12).

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