Influence of fluorine on the fiber performance studied through the NBOHC-related 1.9 eV microluminescence

L. Vacarro (1) , Sébastien Girard (2) , A. Alessi (1, 3) , M. Cannas (1) , A. Boukenter (3) , Y. Ouerdane (3) , R. Boscaino (1)

1 Università degli studi di Palermo - University of Palermo
2 DCRE CEA - Département de Conception et Réalisation des Experimentations, CEA-DIF
3 LHC - Laboratoire Hubert Curien

The distribution of Non Bridging Oxygen Hole Centers (NBOHC) in Fluorine doped optical fibers was investigated by confocal microluminescence spectroscopy monitoring the characteristic 1.9 eV luminescence band. The results show that these defects are generated by the fiber drawing and their concentration further increases after γ irradiation. The NBOHC profile along the fiber is anticorrelated to the fluorine content. This finding agrees with the role of fluorine in the fiber toughness and is discussed from the microscopic point of view on the basis of previous works.

Domaines: Optique [physics.optics]

L. Vacarro, Sébastien Girard, A. Alessi, M. Cannas, A. Boukenter, et al.. Influence of fluorine on the fiber performance studied through the NBOHC-related 1.9 eV microluminescence. Si02 Advanced Dielectrics and Related Devices, Jun 2012, Hyères, France. pp.47-48. ⟨ujm-00732497⟩