Thermo-Optical Studies of Laser Ceramics

Palashov, O.; Starobor, Aleksey; Perevezentsev, Evgeny; Snetkov, Ilya; Mironov, É. A.; Yakovlev, A. A.; Балабанов, С. С.; Permin, Dmitry; Belyaev, Alexander

doi:10.3390/ma14143944

Cited by 21 publications

(5 citation statements)

References 124 publications

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“…Magneto-optical materials are thus widely studied as they are key elements of Faraday isolators [5]. Among magneto-optical materials applied in the visible to near-infrared wavelength band, Tb 3 Ga 5 O 12 (TGG) single crystals are now dominating the market [6] due to their excellent comprehensive performance, including low optical loss, high Verdet constant, high thermal conductivity, high laser damage threshold, and good thermally induced depolarization performance [7,8]. To further improve the performance of Faraday isolators, research into new magneto-optical materials with better performance has not stopped in recent years.…”

Section: Introductionmentioning

confidence: 99%

Effect of Y substitution on the microstructure, magneto-optical, and thermal properties of (Tb _{1−
x}Y _x) ₃Al ₅O ₁₂ transparent ceramics

Zhang,

Hu,

et al. 2024

Journal of Advanced Ceramics

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Faraday isolators can prevent the front-end system from disturbance and damage caused by a back-reflected beam, so they are important elements in laser systems. As magneto-optical materials are the most important component in Faraday isolators, the studies on magneto-optical materials have attracted much attention these years. Tb 3 Al 5 O 12 (TAG) ceramics are considered to be one of the most promising magneto-optical materials for visible to near-infrared wavelength band application because of their outstanding comprehensive magneto-optical performance. However, the optical quality of TAG ceramics needs further optimization to meet the application requirements. In this work, high optical quality (Tb 1−x Y x ) 3 Al 5 O 12 (x = 0, 0.05, 0.1, 0.2, and 0.3) magneto-optical ceramics were fabricated successfully by solid-state reaction sintering combined with hot isostatic pressing (HIP) post-treatment. All the ceramics obtained showed a single garnet phase for different values of x in the range studied. The addition of Y 2 O 3 was found to suppress the secondary phase and improve optical quality significantly. The ceramic samples obtained had clear grain boundaries and possessed the inline transmittance values of 82.9% at 1064 nm and 82.2% at 633 nm, respectively. The Verdet constants of (Tb 1−x Y x ) 3 Al 5 O 12 ceramics with x = 0, 0.05, 0.1, 0.2, and 0.3 were −188.1, −175.4, −168.5, −143.0, and −119.9 rad/(T•m), respectively. The thermal conductivity of TAG ceramics was found to be 5.23 W/(m•K) at 25 ℃, and when 20% Y was substituted in place of Tb, the thermal conductivity decreased by only 9.4%.

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Section: Introductionmentioning

confidence: 99%

Effect of Y substitution on the microstructure, magneto-optical, and thermal properties of (Tb _{1−
x}Y _x) ₃Al ₅O ₁₂ transparent ceramics

Zhang,

Hu,

et al. 2024

Journal of Advanced Ceramics

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“…MO materials such as Tb3Ga5O12 (TGG), Tb3Al5O12 (TAG) and CeF3 have been extensively studied in the visible and near-infrared wavelength ranges [13][14][15] . However, the availability of MO materials for mid-infrared wavelengths is currently limited.…”

Section: Introductionmentioning

confidence: 99%

High performance mid-infrared optical isolators based on Y3Fe5O12 magneto-optic ceramics

Jiang,

Chen,

Shen

et al. 2024

Preprint

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As one of the essential optical components, optical isolators and their core magneto-optic (MO) materials have been widely researched in the range of visible to near-infrared wavelengths. However, there is a relatively limited selection of MO materials reported for mid-infrared wavelength optical isolators, and their performances are not satisfactory. In this study, the Faraday effects of Y3Fe5O12 (YIG) MO materials in the forms of commercial single crystals, films, and recently emerging ceramics were tested and compared at mid-infrared wavelengths. YIG ceramics have Faraday rotation angles as large as 114 deg/cm and 60 deg/cm at 2.1 µm and 3.8 µm, respectively. Combined with their size advantages, the mid-infrared optical isolators based on YIG ceramics exhibited an extinction ratio of 25.26 dB and an insertion loss of 1.01 dB at a wavelength of 2.1 µm, and an extinction ratio of 28.3 dB and an insertion loss of 1.17 dB at a wavelength of 3.8 µm. Further improvement in YIG ceramic optical quality is expected to provide a feasible approach for realization of mid-infrared optical isolators.

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“…In the case of FS Faraday isolators, β = θFl = 45°, hence for the forward transmission, IF =I0e -αl , and for the backward transmission, IB = 0. With the rapid development of laser materials and laser systems in recent years [24][25][26][27][28], the output power is increasing day by day in laser devices. High-power lasers have broad application prospects, including laser processing [29], scientific research (e.g.…”

Section: Introduction 1faraday Effects and Faraday Isolatorsmentioning

confidence: 99%

A review on magneto-optical ceramics for Faraday isolators

Zhang¹,

Hu²,

Snetkov³

et al. 2023

Journal of Advanced Ceramics

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As a promising magneto-optical material applied in Faraday isolators, magneto-optical ceramics possess excellent comprehensive properties and have attracted much attention these years. Herein, we review the fabrication and properties of magneto-optical ceramics including garnet, sesquioxide, and A2B2O7ceramics. Some of the ceramics have been proved to possess applicable performance, while further studies are still needed for most of the magneto-optical ceramics. Aiming at the application for isolators, the research status, existing problems, and development trends of magneto-optical ceramics are shown and discussed in this review.

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Thermo-Optical Studies of Laser Ceramics

Cited by 21 publications

References 124 publications

Effect of Y substitution on the microstructure, magneto-optical, and thermal properties of (Tb _{1−
x}Y _x) ₃Al ₅O ₁₂ transparent ceramics

Effect of Y substitution on the microstructure, magneto-optical, and thermal properties of (Tb _{1−
x}Y _x) ₃Al ₅O ₁₂ transparent ceramics

High performance mid-infrared optical isolators based on Y3Fe5O12 magneto-optic ceramics

A review on magneto-optical ceramics for Faraday isolators

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Thermo-Optical Studies of Laser Ceramics

Cited by 21 publications

References 124 publications

Effect of Y substitution on the microstructure, magneto-optical, and thermal properties of (Tb 1− x Y x ) 3Al 5O 12 transparent ceramics

Effect of Y substitution on the microstructure, magneto-optical, and thermal properties of (Tb 1− x Y x ) 3Al 5O 12 transparent ceramics

High performance mid-infrared optical isolators based on Y3Fe5O12 magneto-optic ceramics

A review on magneto-optical ceramics for Faraday isolators

Contact Info

Product

Resources

About

Effect of Y substitution on the microstructure, magneto-optical, and thermal properties of (Tb _{1−
x}Y _x) ₃Al ₅O ₁₂ transparent ceramics

Effect of Y substitution on the microstructure, magneto-optical, and thermal properties of (Tb _{1−
x}Y _x) ₃Al ₅O ₁₂ transparent ceramics