Study on mode coupling characteristics of multimode magneto-optical fibers

Qiu, X.; Wu, Baojian; Liu, Yawen; Wen, Feng

doi:10.1016/j.optcom.2019.124707

Cited by 7 publications

(7 citation statements)

References 15 publications

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“…( 2 ), obtained from linear fitting of 1/VB vs. 2 . In this case, the value of the effective transition wavelength ( ) for the BGB-18Tb glass was 228 nm, which was close to the 4f 8 ↔ 4f 7 5d…”

Section: Sample Label Tgmentioning

confidence: 99%

“…where, A, λ, and λt are approximation parameters and are given as the incident light and the effective transition wavelengths, respectively 13 . Figure 8 ( 2 ), obtained from linear fitting of 1/VB vs. 2 . In this case, the value of the effective transition wavelength ( ) for the BGB-18Tb glass was 228 nm, which was close to the 4f 8 ↔ 4f 7 5d electron energy level transition of Tb 3+ , specifically the 7 F6-7 D5 level transition between 220 and 250 nm 48 .…”

Section: Magneto-optical Properties and Verdet Constant (V B )mentioning

confidence: 99%

“…Magneto-optical (MO) materials based on the Faraday effect have been increasingly studied for use in new technologies 1,2 . MO materials have been applied as modulators, as optical isolators, and as magneto-optical fiber sensors [3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

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Large Faraday effect and structural properties of heavily Tb3+-doped borogermanate glasses: a potential precursor of magneto-optical fibers

Franco

Ledemi

Correr

et al. 2021

Preprint

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New glass compositions containing high concentrations of Tb3+ ions were developed aiming at the production of magneto-optical (MO) fibers. This work reports on the structural and MO properties of a new glass composition based on (100-x)(41GeO2-25B2O3-4Al2O3-10Na2O-20BaO) – xTb4O7. Morphological analysis (HR-TEM) of the sample with the highest concentration of Tb3+ ions confirmed the homogeneous distribution of Tb3+ ions and the absence of nanoclusters. All the samples presented excellent thermal stability against crystallization (ΔT > 100 oC). An optical fiber was manufactured by a fiber drawing process. The UV-Vis spectra of the glasses showed Tb3+ electronic transitions and optical windows varying from 0.4 to 1.6 µm. The magneto-optical properties and the paramagnetic behaviors of the glasses were investigated using Faraday rotation experiments. The Verdet constant (VB) values were calculated at 500, 650, 880, 1050, 1330, and 1550 nm. The maximum VB values obtained at 650 and 1550 nm for the glass with x = 18 mol% were − 128 and − 17.6 rad T− 1 m− 1, respectively. The VB values at 500 and 1550 nm for the optical fiber containing 8 mol% of Tb4O7 were − 110.2 and − 9.5 rad T− 1 m− 1, respectively, while the optical loss at around 880 nm was 6.4 dB m− 1.

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Section: Sample Label Tgmentioning

confidence: 99%

Section: Magneto-optical Properties and Verdet Constant (V B )mentioning

confidence: 99%

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Large Faraday effect and structural properties of heavily Tb3+-doped borogermanate glasses: a potential precursor of magneto-optical fibers

Franco

Ledemi

Correr

et al. 2021

Preprint

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“…According to our previous analysis, the MO coupling coefficients or the corresponding MC&DEs are large for the mode orders = ℓ k. We may also make use of a higher-order MSW mode to improve the MC&DE with ¹ ℓ k. For example, to satisfy phase matching condition for the case with  TM TE , The similar analysis is also applied to their collinear interaction, 14,17) in which the propagating direction of the MSWs is the same as that of the GOWs, and only mode conversion occurs 18) due to the additional permittivity tensor e D = + D f M fM m j 2 3 .…”

Section: Tm Tementioning

confidence: 99%

Mode conversion characteristics of multimode magneto-optical Bragg diffraction cells

Qiu

Wen

et al. 2020

Appl. Phys. Express

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We study the dependence of magneto-optical (MO) coupling coefficients on the modal fields for the design of multi-mode MO Bragg cells. The mode conversion and diffraction efficiencies between the same order TM and TE modes can theoretically be up to about 98% by adjusting the excitation frequency of the fundamental-mode magneto-static forward volume wave (MSFVW) in the bismuth-substituted yttrium iron garnet film at the optimized thickness and length. The different order mode conversion is also available by means of the higher-mode MSFVWs. The resulting mode conversion-based switch function is discussed.

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“…Magneto-optical (MO) materials based on the Faraday effect have been increasingly studied for use in new technologies 1 , 2 . MO materials have been applied as modulators, as optical isolators, and as magneto-optical fiber sensors 3 – 5 .…”

Section: Introductionmentioning

confidence: 99%

Magneto-optical borogermanate glasses and fibers containing Tb3+

Franco

Ledemi

Correr

et al. 2021

Sci Rep

View full text Add to dashboard Cite

New glass compositions containing high concentrations of Tb3+ ions were developed aiming at the production of magneto-optical (MO) fibers. This work reports on the structural and MO properties of a new glass composition based on (100 − x)(41GeO2–25B2O3–4Al2O3–10Na2O–20BaO) − xTb4O7. Morphological analysis (HR-TEM) of the sample with the highest concentration of Tb3+ ions confirmed the homogeneous distribution of Tb3+ ions and the absence of nanoclusters. All the samples presented excellent thermal stability against crystallization (ΔT > 100 °C). An optical fiber was manufactured by a fiber drawing process. The UV–Vis spectra of the glasses showed Tb3+ electronic transitions and optical windows varying from 0.4 to 1.6 μm. The magneto-optical properties and the paramagnetic behaviors of the glasses were investigated using Faraday rotation experiments. The Verdet constant (VB) values were calculated at 500, 650, 880, 1050, 1330, and 1550 nm. The maximum VB values obtained at 650 and 1550 nm for the glass with x = 18 mol% were -128 and − 17.6 rad T−1 m−1, respectively. The VB values at 500 and 1550 nm for the optical fiber containing 8 mol% of Tb4O7 were − 110.2 and − 9.5 rad T−1 m−1, respectively, while the optical loss at around 880 nm was 6.4 dB m−1.

show abstract

Study on mode coupling characteristics of multimode magneto-optical fibers

Cited by 7 publications

References 15 publications

Large Faraday effect and structural properties of heavily Tb3+-doped borogermanate glasses: a potential precursor of magneto-optical fibers

Large Faraday effect and structural properties of heavily Tb3+-doped borogermanate glasses: a potential precursor of magneto-optical fibers

Mode conversion characteristics of multimode magneto-optical Bragg diffraction cells

Magneto-optical borogermanate glasses and fibers containing Tb3+

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