The microstructure of erbium–ytterbium co-doped oxyfluoride glass–ceramic optical fibers

Augustyn, Elżbieta; Żelechower, M.; Stróż, Danuta; Chrapoński, Jacek

doi:10.1016/j.optmat.2011.04.037

Cited by 29 publications

(15 citation statements)

References 14 publications

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“…Furthermore, heat treatments, in general, are quite long (from 3 h up to 120 h) and thin films cannot be directly obtained, thus limiting the possibility of application as integrated devices. Despite these disadvantages, the MQ method demonstrated the possibility of obtaining OxGCs as bulk materials with enhanced optical properties with respect to precursor glass, and in recent years, the preparation of novel OxGC optical fibers has also been achieved [14,15,16,17]. Therefore, MQ is still the most used processing method to obtain OxGCs and is also scalable to an industrial level.…”

Section: Introductionmentioning

confidence: 99%

Transparent Glass-Ceramics Produced by Sol-Gel: A Suitable Alternative for Photonic Materials

et al. 2018

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Transparent glass-ceramics have shown interesting optical properties for several photonic applications. In particular, compositions based on oxide glass matrices with fluoride crystals embedded inside, known as oxyfluoride glass-ceramics, have gained increasing interest in the last few decades. Melt-quenching is still the most used method to prepare these materials but sol-gel has been indicated as a suitable alternative. Many papers have been published since the end of the 1990s, when these materials were prepared by sol-gel for the first time, thus a review of the achievements obtained so far is necessary. In the first part of this paper, a review of transparent sol-gel glass-ceramics is made focusing mainly on oxyfluoride compositions. Many interesting optical results have been obtained but very little innovation of synthesis and processing is found with respect to pioneering papers published 20 years ago. In the second part we describe the improvements in synthesis and processing obtained by the authors during the last five years. The main achievements are the preparation of oxyfluoride glass-ceramics with a much higher fluoride crystal fraction, at least double that reported up to now, and the first synthesis of NaGdF4 glass-ceramics. Moreover, a new SiO2 precursor was introduced in the synthesis, allowing for a reduction in the treatment temperature and favoring hydroxyl group removal. Interesting optical properties demonstrated the incorporation of dopant ions in the fluoride crystals, thus obtaining crystal-like spectra along with higher efficiencies with respect to xerogels, and hence demonstrating that these materials are a suitable alternative for photonic applications.

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Section: Introductionmentioning

confidence: 99%

Transparent Glass-Ceramics Produced by Sol-Gel: A Suitable Alternative for Photonic Materials

et al. 2018

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“…Rare-earth doped oxyfluoride GC fibers have been investigated because of their low-photon-energy environment202122. Additionally, Ni 2+ - doped GC fiber23, Cr 4+ -doped forsterite GC fiber24, and other GC fiber have also been reported25.…”

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confidence: 99%

Glass-ceramic optical fiber containing Ba2TiSi2O8 nanocrystals for frequency conversion of lasers

Fang

Xiao

Wang

et al. 2017

Sci Rep

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A glass-ceramic optical fiber containing Ba2TiSi2O8 nanocrystals fabricated using a novel combination of the melt-in-tube method and successive heat treatment is reported for the first time. For the melt-in-tube method, fibers act as a precursor at the drawing temperature for which the cladding glass is softened while the core glass is melted. It is demonstrated experimentally that following heat treatment, Ba2TiSi2O8 nanocrystals with diameters below 10 nm are evenly distributed throughout the fiber core. Comparing to the conventional rod-in-tube method, the melt-in-tube method is superior in terms of controllability of crystallization to allow for the fabrication of low loss glass-ceramic fibers. When irradiated using a 1030 nm femtosecond laser, an enhanced green emission at a wavelength of 515 nm is observed in the glass-ceramic fiber, which demonstrates second harmonic generation of a laser action in the fabricated glass-ceramic fibers. Therefore, this new glass-ceramic fiber not only provides a highly promising development for frequency conversion of lasers in all optical fiber based networks, but the melt-in-tube fabrication method also offers excellent opportunities for fabricating a wide range of novel glass-ceramic optical fibers for multiple future applications including fiber telecommunications and lasers.

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“…The influence of B2O3 on the spectroscopic and fluorescence properties was reported by Jianhu Yang et al [10] and Xiang Shen et al [11]. The introduction of Na2O facilitates the homogeneity for the glass-matrix and also causes a change in structural behavior of boron [12]. Further, the introduction of ZnO and BaO enhances the optical properties, mechanical and thermal stability of the glasses, respectively [13].…”

Section: Introductionmentioning

confidence: 86%

Enhanced 1.53 μm luminescence in Er3+ -doped sodium boro silicate glasses by Yb3+ co-doping

Jamalaiah¹

2015

Appl. Sci. Lett.

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Er3+ /Yb 3+ co-doped sodium boro silicate (NBS) glasses were prepared by melt quenching technique. The Judd-Ofelt intensity parameters were determined by excluding the experimental oscillator strength of the 4 I15/2 → 4 I11/2 absorption band. The radiative parameters have been calculated for the 4 I13/2 → 4 I15/2 (1.53 μm) emission transition following the Judd-Ofelt theory. The fluorescence spectra were recorded by exciting with 980 nm laser. The intensity of 1.53 μm band was enhanced due to the transfer of energy from Yb 3+ ions to Er 3+ ions in the NBSErYb glass. The emission cross-section of the 4 I13/2 → 4 I15/2 transition has also been estimated by the McCumber theory. Based on the spectroscopic and radiative parameters, it is suggested that the NBSErYb glass is a prominent candidate for 1.53 μm broadband optical amplifiers.

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The microstructure of erbium–ytterbium co-doped oxyfluoride glass–ceramic optical fibers

Cited by 29 publications

References 14 publications

Transparent Glass-Ceramics Produced by Sol-Gel: A Suitable Alternative for Photonic Materials

Transparent Glass-Ceramics Produced by Sol-Gel: A Suitable Alternative for Photonic Materials

Glass-ceramic optical fiber containing Ba2TiSi2O8 nanocrystals for frequency conversion of lasers

Enhanced 1.53 μm luminescence in Er3+ -doped sodium boro silicate glasses by Yb3+ co-doping

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