Title :

High temperature annealing behavior of femtosecond written FBGs in Ge-doped fused silica optical fibers

Author(s) :

Lerner, Alexandre [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Laboratoire Capteurs Fibres Optiques (CEA, LIST) [LCFO (CEA, LIST)]
Blanchet, Thomas [Auteur]
Laboratoire Capteurs Fibres Optiques (CEA, LIST) [LCFO (CEA, LIST)]
Cotillard, Romain [Auteur]
Laboratoire Capteurs Fibres Optiques (CEA, LIST) [LCFO (CEA, LIST)]
Sosa, Matilde [Auteur]
Institut de Chimie Moléculaire et des Matériaux d'Orsay [ICMMO]
Laboratoire Capteurs Fibres Optiques (CEA, LIST) [LCFO (CEA, LIST)]
Roussel, Nicolas [Auteur]
Laboratoire Capteurs Fibres Optiques (CEA, LIST) [LCFO (CEA, LIST)]
Bouwmans, Géraud [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Laffont, G. [Auteur]
Laboratoire Capteurs Fibres Optiques (CEA, LIST) [LCFO (CEA, LIST)]

Conference title :

EWOFS 2023 - European Workshop on Optical Fibre Sensors

City :

Mons

Country :

Belgique

Start date of the conference :

2023-05-23

Book title :

Proc. SPIE , European Workshop on Optical Fibre Sensors (EWOFS 2023)

Publisher :

SPIE

Publication date :

2023

HAL domain(s) :

Physique [physics]/Physique [physics]/Optique [physics.optics]
Chimie/Matériaux

English abstract : [en]

We investigate the behavior and stability of fiber Bragg gratings written by femtosecond laser pulses in Ge-doped fused silica optical fibers, using both the phase mask and point-by-point techniques, during their annealing ...
Show more >We investigate the behavior and stability of fiber Bragg gratings written by femtosecond laser pulses in Ge-doped fused silica optical fibers, using both the phase mask and point-by-point techniques, during their annealing at 1200°C for 30 min and subsequent aging at 1000°C during 43 hours. Bragg wavelength drifts and reflected peak amplitude variations were shown to drastically differ depending on the writing scheme and thermal history. Particularly, we show that amplitude decay of point-by-point gratings at 1200°C may be easily mitigated by tuning the writing pulse energy. Future work may be pursued in order to finely unravel the high temperature mechanisms regarding the stability of fs written fiber Bragg gratings used as temperature sensors in order to improve measurement stability and accuracy.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL