PHOTOBLEACHING OF FIBER BRAGG GRATINGS WRITTEN THROUGH THE FIBER COATING

A method and a system for providing a low absorption Bragg grating along a grating region of an optical fiber are presented. The Bragg grating is written along the grating region by multiphoton absorption of ultrafast light pulses impinged on this grating region through a polymer coating of the opti...

Full description

Saved in:
Bibliographic Details
Main Authors ROUSSEAU, Guy, BERNIER, Martin, VILLENEUVE, Alain, FAUCHER, Mathieu, TREPANIER, François, GOUIN, Samuel, CARIGNAN, Claude
Format Patent
LanguageEnglish
Published 21.04.2022
Subjects
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
METALLURGY
MINERAL OR SLAG WOOL
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
Online AccessGet full text

Cover

More Information
Summary:A method and a system for providing a low absorption Bragg grating along a grating region of an optical fiber are presented. The Bragg grating is written along the grating region by multiphoton absorption of ultrafast light pulses impinged on this grating region through a polymer coating of the optical fiber. The Bragg grating is then photobleached by propagating a photobleaching light beam along the optical fiber. The photobleaching light beam has optical parameters selected to reduce defects in the grating region induced by the writing of the Bragg grating in a substantially non-thermal regime.
Bibliography:Application Number: US202117502997