講演情報
[23p-12M-5]Synthesis of a phase separated tellurite optical fiber
〇(P)Jonathan deClermontGallerande1, Julien Cardia2, Asuka Nakatani1, Takenobu Suzuki1, Yasutake Ohishi1 (1.TTI, 2.Rennes University)
キーワード：
Tellurite、Phase separated glass、Fiber
In 2022, Demuth & al. presented a silica phase separated optical fiber (PSOF) using a glass developed by Corning Inc. By using phase separated glasses, it is possible to obtain a random structure with two glasses with different refractive indices at once. Thus, it becomes possible to obtain Transversely Disordered Optical Fibers (TDOF) by skipping the stack-and-draw approach, making it easy to scale the process to an industrial level.
Even so, the problem of PSOF is that, while it is possible to fiber the nucleated phase-separated glasses, their elongated length is short. That makes it so that the longitudinal direction of the fiber is not invariant as it is in a conventional TDOF. To remedy this problem, having a high refractive index difference between both separated glasses is important, as it will increase the light confinement. For this, tellurite glasses have a high linear refractive index range and are a material of choice. Previous research showed that the TeO2-B2O3 system shows glass phase separation in tellurite glasses is possible. This makes this system a solid base for creating PSOF, as there is a need for binary phased glasses.
This work shows our progress in creating tellurite PSOF based on this phase separated glass
Even so, the problem of PSOF is that, while it is possible to fiber the nucleated phase-separated glasses, their elongated length is short. That makes it so that the longitudinal direction of the fiber is not invariant as it is in a conventional TDOF. To remedy this problem, having a high refractive index difference between both separated glasses is important, as it will increase the light confinement. For this, tellurite glasses have a high linear refractive index range and are a material of choice. Previous research showed that the TeO2-B2O3 system shows glass phase separation in tellurite glasses is possible. This makes this system a solid base for creating PSOF, as there is a need for binary phased glasses.
This work shows our progress in creating tellurite PSOF based on this phase separated glass