Measurement of index modulation along Fiber Bragg Gratings by Side Scattering and Local Heating methods

Nicolas Roussel (1) , Sylvain Magne (1) , Christophe Martinez (1) , Pierre Ferdinand (1)

1 LCFO (CEA, LIST) - Laboratoire Capteurs Fibres Optiques (CEA, LIST)

A method for measurement of index modulation profile along fiber Bragg gratings is described which uses a hot finger that selectively heats some fringes. Results obtained from this local heating technique and side scattering technique are reviewed and compared.

Mots clés: instrumentation, Fiber Bragg Grating, Distributed and Quasi-distributed sensing, laser

Domaines: Optique / photonique; Instrumentations et Détecteurs [physics.ins-det]

Nicolas Roussel, Sylvain Magne, Christophe Martinez, Pierre Ferdinand. Measurement of index modulation along Fiber Bragg Gratings by Side Scattering and Local Heating methods. Optical Fiber Technology, 1999, 5, pp.119-132. ⟨cea-01840687⟩