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- Title
Synthesis, Structural and Optical Properties of Bismuth‐Doped Sol‐Gel‐Derived Phosphosilicate Glasses.
- Authors
El Hamzaoui, Hicham; Kinowski, Christophe; Razdobreev, Igor; Cassez, Andy; Bouwmans, Géraud; Prochet, Benoit; Capoen, Bruno; Bouazaoui, Mohamed
- Abstract
Bismuth‐doped glasses are attractive materials for the development of new optical amplifiers and tunable laser sources. In this paper, Bi‐doped phosphosilicate glasses are prepared using the sol‐doping technique in combination with shaping using cold isostatic pressing. After a first drawing at high temperature (2000 °C), the obtained glass cane presents a wide near infrared (NIR) photoluminescence band under visible excitation. The authors show that this NIR optical activity, connected to phosphorus center, is preserved after a second drawing into a conventional optical fiber. These results confirm the potentialities of this synthesis approach for the fabrication of Bi‐activated optical fibers. The incorporation and the preservation of optically active bismuth centers into silica‐based optical fibers are essential for the development of new amplifying media and tunable laser sources. In this paper, it is shown that the sol‐doping route, in combination with shaping using cold isostatic pressing, is a suitable method for producing Bi‐doped phosphosilicate glasses exhibiting high doping homogeneity, uniform refractive index profile, and a near infrared photoluminescence connected to phosphorus center.
- Subjects
PHOSPHOSILICATE glass; SOL-gel processes; BISMUTH; SEMICONDUCTOR synthesis; CRYSTAL structure; OPTICAL properties of semiconductors
- Publication
Physica Status Solidi. A: Applications & Materials Science, 2019, Vol 216, Issue 3, pN.PAG
- ISSN
1862-6300
- Publication type
Article
- DOI
10.1002/pssa.201800411