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Proceedings Paper

Photosensitivity of fluoride glass planar waveguides doped with rare earth ions (Ce3+, Eu2+, Er3+)
Author(s): Marc Douay; Wenxiang Xie; Pascal Bernage; Pierre Niay; Brigitte Boulard; Youping Gao; Charles Jacoboni; H. Poignant
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Paper Abstract

Rare earth (Ce3+, Eu2+, Er3+) doped PZG (PbF2, ZnF2 GaF3) glass thin films fabricated by vapor phase deposition on CaF2 substrates have been shown to possess high photosensitivity. Efficient and permanent gratings have been written in the PZG glass by using a cw UV laser (244 nm). The kinetics of the grating growths were monitored by using a HeNe beam (633 nm) in course of grating photoinscription. The sample surfaces at the grating places were investigated through interferometric microscopy. The changes in refractive index modulation were estimated to be 6.8 multiplied by 10-3 and 3.7 multiplied by 10-3 in the Eu2+ and Ce3+ doped samples respectively. Stability of the gratings was investigated through 30 min isochronal thermal annealing experiment.

Paper Details

Date Published: 23 January 1997
PDF: 10 pages
Proc. SPIE 2998, Photosensitive Optical Materials and Devices, (23 January 1997); doi: 10.1117/12.264202
Show Author Affiliations
Marc Douay, Univ. des Sciences et Technologies de Lille (France)
Wenxiang Xie, Univ. des Sciences et Technologies de Lille (France)
Pascal Bernage, Univ. des Sciences et Technologies de Lille (France)
Pierre Niay, Univ. des Sciences et Technologies de Lille (France)
Brigitte Boulard, Univ. du Maine (France)
Youping Gao, Univ. du Maine (France)
Charles Jacoboni, Univ. du Maine (France)
H. Poignant, France Telecom CNET-Lannion (France)


Published in SPIE Proceedings Vol. 2998:
Photosensitive Optical Materials and Devices
Mark P. Andrews, Editor(s)

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