| Autor: |
Guérineau, Théo, Aouji, Samar, Morency, Steeve, Calzavara, Florian, Larochelle, Patrick, Labranche, Philippe, Lapointe, Jerome, Danto, Sylvain, Cardinal, Thierry, Fargin, Evelyne, Bernier, Martin, Vallée, Réal, Messaddeq, Younès |
| Předmět: |
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| Zdroj: |
Scientific Reports; 3/6/2023, Vol. 13 Issue 1, p1-9, 9p |
| Abstrakt: |
The development of efficient and compact photonic systems in support of mid-infrared integrated optics is currently facing several challenges. To date, most mid-infrared glass-based devices are employing fluoride or chalcogenide glasses (FCGs). Although the commercialization of FCGs-based optical devices has rapidly grown during the last decade, their development is rather cumbersome due to either poor crystallization and hygroscopicity resilience or poor mechanical-thermal properties of the FCGs. To overcome these issues, the parallel development of heavy-metal oxide optical fiber from the barium-germanium-gallium oxide vitreous system (BGG) has revealed a promising alternative. However, over 30 years of fiber fabrication optimization, the final missing step of drawing BGG fibers with acceptable losses for meters-long active and passive optical devices had not yet been reached. In this article, we first identify the three most important factors that prevent the fabrication of low-loss BGG fibers i.e., surface quality, volumic striae and glass thermal-darkening. Each of the three factors is then addressed in setting up a protocol enabling the fabrication of low-loss optical fibers from gallium-rich BGG glass compositions. Accordingly, to the best of our knowledge, we report the lowest losses ever measured in a BGG glass fiber i.e., down to 200 dB km−1 at 1350 nm. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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