Presentation Information
[23p-12M-4]Synthesis of a densely air-filled tellurite-air transversely disordered optical fiber
〇(PC)Jonathan deClermontGallerande1, Antoine Legendre2, Lucille Ascenti3, Asuka Nakatani1, Takenobu Suzuki1, Yasutake Ohishi1 (1.TTI, 2.ESIR, 3.ESIREM)
Keywords:
Tellurite,Fiber,glass-air Fiber
Multicore optical fibers are widely used to transport optical images, although there is still a pixelation effect and inter-core coupling that blurs the transported images. To solve this problem, a novel class of optical fibers based on the transverse Anderson localization of light has emerged. Anderson localization is the absence of wave diffusion due to an interference phenomenon induced by a highly disordered media surrounding the propagating wave. Thus, these new fibers, named transversely disordered optical fibers (TDOF) have an original index profile which is random (disordered) in the transverse cross-section of the fiber but invariant in the longitudinal direction. The first TDOF has been achieved using polymethyl methacrylate and polystyrene, permitting optical image transport at 405 and 633 nm. Unfortunately, the resolution of polymer fibers is limited due to optical attenuation and the low quality of cleaving and polishing surfaces of polymer fibers. In the same wavelength range, a more recent study showed good image transmission through a meter-long randomly disordered silica-air optical fiber, showing high quality image.
This work tries to obtain such a glass-air TDOF by using tellurite glasses as they have high linear refractive index (n≈2), high dielectric constant, and wide infrared transmission range (from 0.35 to 6µm). The problem is that, compared to silica glasses, the variation of viscosity is rapid with the increase in temperature, which makes it difficult to maintain the air hole in the structure. This poster presents the process to obtain a high (~33%) air volume ratio TDOF using tellurite glasses.
This work tries to obtain such a glass-air TDOF by using tellurite glasses as they have high linear refractive index (n≈2), high dielectric constant, and wide infrared transmission range (from 0.35 to 6µm). The problem is that, compared to silica glasses, the variation of viscosity is rapid with the increase in temperature, which makes it difficult to maintain the air hole in the structure. This poster presents the process to obtain a high (~33%) air volume ratio TDOF using tellurite glasses.