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Fluoride Glass Fibers

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Papers – SPIE Photonics West

Want to learn more about fluoride fibers and its applications ? LVF will be contributing to several papers at Photonics West 2020 in San Francisco.

 

Mid-infrared detection of organic compounds with a 2-10µm supercontinuum source generated from concatenated fluoride and chalcogenide fibers
Paper 11233-37, Sunday, February 2nd, 2:40 PM – 3:00 PM

J. Troles, S. Venck, S. Cozic, M. Meneghettia, L. Brilland, R. Chahal, J. L. Adam, C. Boussard, B. Bureau S. Poulain, L. Bodin, F. Joulain, M. Poulain, T. Sylvestre, G. Huss.

The mid-infrared spectral region is a great technical and scientific interest in numerous research field and applications. Among these studies, the generation of mid-infrared supercontinuum in fibers has attracted strong interest in the last decade, because of unique properties such as broad wavelength-coverage and brightness. In this work, a cascaded supercontinuum generated in a fluoride and a chalcogenide fiber spanning from 2 to 10 µm has been used for the detection of infrared signatures of organic compounds. Those results open a new way for remote sensing and spectroscopy in the mid-IR.

 

2-10 µm mid-infrared supercontinuum generation in cascaded optical fibers : experiment and modelling
Paper 11264-8 / Monday, February 3rd / 11:10 AM – 11:30 AM

S. Venck, F. St-Hilaire, L. Brilland, A. Nath Ghosh, R. Chahal, M. Meneghetti, J. Troles, F. Joulain, S. Cozic, S. Poulain, G. Huss, M. Rochette, J. M. Dudley, T. Sylvestre

Mid-infrared supercontinuum (SC) sources in the molecular fingerprint region are in high demand for a wide range of applications including OCT, remote sensing, spectroscopy, and metrology. Here we demonstrate flat MIR SC generation from 2 to 10 µm using a cascaded silica and soft-glass fiber system directly pumped with a commercially-available 500-ps pulsed fiber laser at 1.55 µm. This technique paves the way for cheaper, practical, and robust broadband SC sources in the mid-IR without the requirement of MIR pumps sources or TDFA. We also describe a fully-realistic numerical model used to simulate the SC through the cascaded fiber system.

 

Breaking the silica ceiling : ZBLAN-based opportunities for photonics applications
Paper 11276-25 / Wednesday, February 5th / 11:30 AM – 11:50 AM

I. Cozmuta, S. Cozic, M. Poulain, S. Poulain, J. Martini

Advances in areas such as quantum computing, AI, IoT will require new materials with performance envelope beyond traditional (i.e. global internet data is rapidly growing beyond petabites/s/km). A long-time runner of silica, heavy metal fluoride glasses represent an attractive candidate due to their optical transmission window being extended deep into the IR and UV with 10x-50x improved spectral attenuations over silica. Today the reliance on silica is hurting the industry by forcing new applications to be retrofitted on it and does not warrant anymore the investments in infrastructure. This paper discusses the challenges and opportunities of simultaneous transmission of high data rate over long distances; an up-to-date ZBLAN-silica comparison and technological areas for which ZBLAN solutions represent a natural fit instead of silica solutions that require wavelength conversion.