https://doi.org/10.1051/epjconf/201921504003
Splicing fluoride glass and silica optical fibers
1
Le Verre Fluoré, Rue Gabriel Voisin, Campus Kerlann 35170 Bruz, France
2
Alphanov, Rue François Mitterrand, 33400 Talence, France
3
Institut Sciences Chimiques de Rennes, Campus Beaulieu, 35042 Rennes Cedex, France
* Corresponding author: solenn.cozic@leverrefluore.eu
Published online: 10 September 2019
Splicing fluoride glass fibers and silica fibers is a critical point for manufacturing all fibered laser modules. As these materials are extremely different, various problems must be considered: thermal, expansion, mechanical, chemical. Reliability and power handling make priority concerns. We report splices made on a 200/220 multimode silica fiber and a double clad 15/250/290 ZBLAN fiber. Splices are proof tested at 300 g tensile strength. No damage is observed after thermal cycling from -30 °C to 85 °C, at 40 % RH during 24 hours. Typical optical splice loss is about 0.2 dB. They withstand 220 W input power at 976 nm without any damage and drastic temperature increasing.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
