Investigation of point defects in silica-based optical fibers by cathodoluminescence

Imène Reghioua (1) , Sylvain Girard (1) , Mélanie Raine (2) , Antonino Alessi (1) , Diego Di Francesca (1) , M. Fanetti (3) , Layla Martin-Samos (3) , Nicolas Richard (2) , Matjaz Valant (3) , Aziz Boukenter (1) , Youcef Ouerdane (1)

1 LHC - Laboratoire Hubert Curien
2 DAM/DIF - DAM Île-de-France
3 University of Nova Gorica

We demonstrate the high potential of cathodoluminescence spectroscopy for the study of point defects in the main classes of optical fibers: Telecom-grade, radiation-hardened, and radiation sensitive. Canonical samples that are differently doped in their core (Ge, P, N) or their cladding (F), have been investigated by cathodoluminescence using electrons of energy ranging from 5 to 30 keV. Advantages and limitation of the CL tool are discussed on the basis of the obtained experimental results.

Domaines: Physique [physics]

Imène Reghioua, Sylvain Girard, Mélanie Raine, Antonino Alessi, Diego Di Francesca, et al.. Investigation of point defects in silica-based optical fibers by cathodoluminescence. RADiation and Its Effects on Components and Systems Conference (RADECS 2016), Sep 2016, Bremen, Germany. ⟨hal-01528267⟩