Structural and luminescent properties of germanate glasses and double-clad optical fiber co-doped with Yb3+/Ho3+

Kochanowicz, Marcin; Żmojda, Jacek; Miluski, Piotr; Ragiń, Tomasz; Pisarski, Wojciech A.; Pisarska, Joanna; Jadach, R.; Sitarz, Maciej; Dorosz, Dominik

doi:10.1016/j.jallcom.2017.08.243

Cited by 48 publications

(5 citation statements)

References 52 publications

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“…The band at around 930–950 cm −1 (G) was assigned to the Ge–O–Ge or Ga–O–Ga stretching vibrations in [GeO 4 ]/[GaO 4 ]. Additionally, the band at 1010–1040 cm −1 might be associated with the stretching vibrations of the (Ge-O − ) of GeO 4 units [ 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 ].…”

Section: Resultsmentioning

confidence: 99%

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Structure and Luminescence Properties of Transparent Germanate Glass-Ceramics Co-Doped with Ni2+/Er3+ for Near-Infrared Optical Fiber Application

et al. 2021

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An investigation of the structural and luminescent properties of the transparent germanate glass-ceramics co-doped with Ni2+/Er3+ for near-infrared optical fiber applications was presented. Modification of germanate glasses with 10–20 ZnO (mol.%) was focused to propose the additional heat treatment process controlled at 650 °C to obtain transparent glass-ceramics. The formation of 11 nm ZnGa2O4 nanocrystals was confirmed by the X-ray diffraction (XRD) method. It followed the glass network changes analyzed in detail (MIR—Mid Infrared spectroscopy) with an increasing heating time of precursor glass. The broadband 1000–1650 nm luminescence (λexc = 808 nm) was obtained as a result of Ni2+: 3T2(3F) → 3A2(3F) octahedral Ni2+ ions and Er3+: 4I13/2 → 4I15/2 radiative transitions and energy transfer from Ni2+ to Er3+ with the efficiency of 19%. Elaborated glass–nanocrystalline material is a very promising candidate for use as a core of broadband luminescence optical fibers.

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Section: Resultsmentioning

confidence: 99%

“…The parameters and assignment of the components bands in the MIR spectra have been shown in Tables 1 and 2, respectively. [23][24][25][26][27][28][29][30][31][32][33][34].…”

Section: Structural Propertiesmentioning

confidence: 99%

Structure and Luminescence Properties of Transparent Germanate Glass-Ceramics Co-Doped with Ni2+/Er3+ for Near-Infrared Optical Fiber Application

et al. 2021

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“…The third peak at the wavenumber of 724 cm −1 is a result of the motion of Ge–O two non-bridged oxygen atoms in GeO 4 tetrahedral units [29,30], thereby this absorption band indicates the maximum phonon energy (MPE) of produced bismuth-germanate host glass. The value of MPE is smaller in comparison to silicate (963 cm −1 ) [31], germanate (1002 cm −1 ) [32], phosphate (1345 cm −1 ) [33], borate (1602 cm −1 ) [34], and comparable to other bismuth glasses (926–1183 cm −1 ) [35,36].…”

Section: Resultsmentioning

confidence: 99%

Study of Mid-Infrared Emission and Structural Properties of Heavy Metal Oxide Glass and Optical Fibre Co-Doped with Ho3+/Yb3+ Ions

et al. 2019

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Bismuth-germanate glasses with low hydroxide content co-doped with Ho3+/Yb3+ ions have been investigated in terms of structural and spectroscopic properties. To reduce OH- ions content and improve transmittance value at the wavelength of 3.1 µm, the glass synthesis has been carried out in low vacuum conditions (45–65 mBar). The composition of the host glass based on heavy metal oxides affects the maximum phonon energy (hωmax = 724 cm−1), which low value has a positive impact on the mid-infrared emission parameters. Emission band at the wavelength of 2.87 µm was observed in glass co-doped with mol% 0.25 Ho2O3/0.75 Yb2O3 under 980 nm high power laser diode wavelength excitation. Lifetime measurements of the Yb3+:2F5/2 quantum level indicate efficient Yb3+ → Ho3+ energy transfer (η = 61%). The developed active bismuth-germanate glass was used as the core of optical fibre operating in the mid-infrared region.

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“…The choice of the host material is an essential factor that needs to be considered when developing new optical glass materials. For that reason, the spectroscopic studies mainly focus on low phonon energy systems such as tellurite, 16,17 fluoroindate, 18 zinc fluoride, 19 and germanate 20,21 glasses. Glass systems with low phonon energy are more suitable as host materials for the RE 3+ because of the less probable non-radiative relaxation process.…”

Section: Introductionmentioning

confidence: 99%

Experimental and theoretical studies on NIR luminescence of titanate‐germanate glasses doped with Pr³⁺ and Tm³⁺ ions

et al. 2023

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Near‐infrared luminescence of Pr3+ and Tm3+ ions in titanate‐geramanate glasses have been studied for laser and fiber amplifier applications. The effect of the molar ratio GeO2:TiO2 (from 5:1 to 1:5) on spectroscopic properties of glass systems was studied by absorption, luminescence measurements, and theoretical calculations using the Judd‐Ofelt theory. It was found that independently of the TiO2 concentration, intense near‐infrared emissions at 1.5 μm and 1.8 μm were observed for glasses doped with Pr3+ and Tm3+ ions, respectively. Moreover, several spectroscopic and near‐infrared (NIR) laser parameters for Pr3+ and Tm3+ ions, such as emission bandwidth, stimulated emission cross‐section, quantum efficiency, gain bandwidth, and figure of merit, were determined. The results were discussed in detail and compared to the different laser glasses. Systematic investigations indicate that Pr3+‐doped system with GeO2:TiO2 = 2:1 and Tm3+‐doped glass with GeO2:TiO2 = 1:2 present profit laser parameters and could be successfully applied to near‐infrared laser and broadband optical amplifiers.This article is protected by copyright. All rights reserved

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Structural and luminescent properties of germanate glasses and double-clad optical fiber co-doped with Yb3+/Ho3+

Cited by 48 publications

References 52 publications

Structure and Luminescence Properties of Transparent Germanate Glass-Ceramics Co-Doped with Ni2+/Er3+ for Near-Infrared Optical Fiber Application

Structure and Luminescence Properties of Transparent Germanate Glass-Ceramics Co-Doped with Ni2+/Er3+ for Near-Infrared Optical Fiber Application

Study of Mid-Infrared Emission and Structural Properties of Heavy Metal Oxide Glass and Optical Fibre Co-Doped with Ho3+/Yb3+ Ions

Experimental and theoretical studies on NIR luminescence of titanate‐germanate glasses doped with Pr³⁺ and Tm³⁺ ions

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Structural and luminescent properties of germanate glasses and double-clad optical fiber co-doped with Yb3+/Ho3+

Cited by 48 publications

References 52 publications

Structure and Luminescence Properties of Transparent Germanate Glass-Ceramics Co-Doped with Ni2+/Er3+ for Near-Infrared Optical Fiber Application

Structure and Luminescence Properties of Transparent Germanate Glass-Ceramics Co-Doped with Ni2+/Er3+ for Near-Infrared Optical Fiber Application

Study of Mid-Infrared Emission and Structural Properties of Heavy Metal Oxide Glass and Optical Fibre Co-Doped with Ho3+/Yb3+ Ions

Experimental and theoretical studies on NIR luminescence of titanate‐germanate glasses doped with Pr3+ and Tm3+ ions

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Experimental and theoretical studies on NIR luminescence of titanate‐germanate glasses doped with Pr³⁺ and Tm³⁺ ions