LU , Zhuorui

Nanoparticle-doped optical fibers, investigated first as fiber lasers and fiber amplifiers, have gained tremendous interest over the past few years as fiber sensors. One of the main interests of such fibers relies on the ability to develop a distributed sensor, allowing real-time measurement with multiplexed architecture. To go beyond the...

Since its first creation, glass has always fascinated with its optical properties, its ability to let light through without being invisible. One of the most spectacular achievements of optical glass is the optical fiber for which considerable work has been done to make it as transparent as possible. However, for twenty years, contrary to this...

For years, scientists have been looking for different techniques to make glasses perfect: fully amorphous and ideally homogeneous. Meanwhile, recent advances in the development of particle-containing glasses (PCG), defined in this paper as glass-ceramics, glasses doped with metallic nanoparticles, and phase-separated glasses show that these...

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MCVD germanosilica glass embedded with YbPO4 crystals were for the first time drawn into optical fibers. Solution doping was used to embed the crystals in the silica soot prior to the collapsing step. We demonstrate, using scanning/transmission electron microscopes and confocal Raman microscope, that YbPO4 crystals survive not only the MCVD...

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Since the ground-breaking discovery done in the 1960s by Charles K. Kao, the perfect glass, i.e. the most transparent glass, drives the development of optical fibers. Meanwhile, to overcome some limitations imposed by the silica glass, one recent strategy consists of embedding nanoparticles in the core of the optical fiber, leading to light...

Since the 1970s, the development of optical fibers has been relying on the quest for the perfect silica glass, i.e. the most transparent one. Meanwhile, silica glass introduces limitations (high phonon energy, low rare-earth ions solubility, etc.) which could be detrimental for new applications. To overcome those drawbacks, a recent strategy...