TeO2-ZnO-La2O3 tellurite glass purification for mid-infrared optical fibers manufacturing

Evrard, Marianne; Combes, Thomas P.; Maldonado, Anthony; Gadret, Grégory; Strutynski, Clément; Jules, Jean‐Charles; Brachais, Claire‐Hélène; Smektala, F.

doi:10.1364/ome.438588

Cited by 10 publications

(6 citation statements)

References 26 publications

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“…Throughout their dehydration study, Wang et al have highlighted that hydroxyl purification decreases the 1450 nm band while flattening the background optical losses beyond 1400 nm. Finally, similar results were also reported for tellurite glasses 41 , 42 .…”

Section: Resultssupporting

confidence: 89%

Toward low-loss mid-infrared Ga2O3–BaO–GeO2 optical fibers

Guerineau

Aouji

Morency

et al. 2023

Sci Rep

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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.

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Section: Resultssupporting

confidence: 89%

Toward low-loss mid-infrared Ga2O3–BaO–GeO2 optical fibers

Guerineau

Aouji

Morency

et al. 2023

Sci Rep

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“…The sensitivity could also be improved over several orders of magnitudes when operating the device at longer wavelengths, which is enabled by the considered materials (transmission up to 4.5 and 7 μm on, respectively, tellurite and GeSbS fibers). [17,35]…”

Section: Evanescent-wave Probing Of Liquidsmentioning

confidence: 99%

Evolutive Optical Fibers Combining Oxide and Chalcogenide Glasses with Submicronic Polymer Structures

Strutynski

Deroh

Evrard

et al. 2022

Advanced Photonics Research

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Multimaterial optical fibers combining tellurite with chalcogenide glasses and featuring thin polymer structures are fabricated via the thermal drawing process. It is demonstrated that micrometric polyethersulfone films can be embedded within larger elongated tellurite/chalcogenide glass architectures. Taking advantage of the strong chemical reactivity contrasts which exist in the considered fiber geometries, a quasi‐exposed‐core waveguide is obtained by selective etching of the glass cladding. The potential of the postprocessed fiber structure is then assessed through evanescent‐wave probing of liquids and numerical investigations are carried out to establish the device performances as function of selected optogeometric parameters. Those results open the way for the development of evolutive photonic objects benefiting from postdrawing processing of multimaterial fibers.

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“…The latter will also allow to expand the transmission range up to 3 μm by reducing OH concentration in glass and fiber. [ 13 ] In the following sections, rectangular fibers with a 90 × 110 μm outer dimensions and a 30 × 35 μm core are considered.…”

Section: Preparation and Characterization Of Rectangular‐core Telluri...mentioning

confidence: 99%

“…Recently, a purification process has been applied to these glasses, significantly improving their transmission. [13] Moreover, it has been recently demonstrated how rectangular core fibers can offer interesting features such as high birefringence or superior thermal management with respect to conventional fibers, since the heat removal is facilitated by the long dimension of the core, which in turn increases the maximum power throughput. This fact opens new perspectives for laser amplification by mode conversion.…”

Section: Introductionmentioning

confidence: 99%

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Highly Nonlinear Multimode Tellurite Fibers: From Glass Synthesis to Practical Applications in Multiphoton Imaging

Evrard

Mansuryan

Couderc

et al. 2022

Advanced Photonics Research

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supercontinuum (SC) spectra. [2] In particular, SC generation with wavelengths covering all the visible domain and a large part of the silica transparency window has been demonstrated [3] : the spatially single-mode polychromatic beams have widely been employed for linear and nonlinear fluorescence imaging using femtosecond, picosecond, or subnanosecond pulses. [4,5] More recently, multimode optical fibers have also been considered for efficient imaging processes demonstration in the visible and near-infrared domain [6] ; in particular, two and three-photon fluorescence measurements have been demonstrated. Although coupling laser light into a multimode fiber is a relatively easy task, the output beam suffers from spatial and temporal distortions that bring severe limitations to the imaging resolution. Such drawback may be mitigated using optimization techniques such as deep-learning algorithms combined with spatial light modulators [7] ; one can also take advantage of nonlinear effects such as the spatial beam self-cleaning, already reported in the literature also for non-silica graded-index multimode fiber, [8] to reach nearly single-mode output beam, and consequently high transverse resolution images. However, the large core diameter of the multimode fiber requires the use of long spans to obtain significant spectral broadening, owing to the relatively low nonlinear

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TeO₂-ZnO-La₂O₃ tellurite glass purification for mid-infrared optical fibers manufacturing

Cited by 10 publications

References 26 publications

Toward low-loss mid-infrared Ga2O3–BaO–GeO2 optical fibers

Toward low-loss mid-infrared Ga2O3–BaO–GeO2 optical fibers

Evolutive Optical Fibers Combining Oxide and Chalcogenide Glasses with Submicronic Polymer Structures

Highly Nonlinear Multimode Tellurite Fibers: From Glass Synthesis to Practical Applications in Multiphoton Imaging

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