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Meeting MS&T22: Materials Science & Technology
Symposium Solid-state Optical Materials and Luminescence Properties
Presentation Title Ceramic Faraday Rotator for Laser Machining
Author(s) Akio Ikesue
On-Site Speaker (Planned) Akio Ikesue
Abstract Scope In recent years, the demand for isolators for fiber lasers has expanded, and high-performance Faraday elements have been demanded. Until now, the main material was a TGG (Tb3Ga5O12) single crystal manufactured by the CZ (Czochralski) method, but a large magnet is required due to the low Verdet constant. In addition, as basic characteristics, the insertion loss and extinction ratio are not sufficient, and there is a drawback that the thermal lens and thermal birefringence are large, so that it cannot be applied to a high-power laser. The author developed TYO [(TbxY1-x)2O3] ceramics with the world’s largest Verdet constant for the above problem and confirmed the Verdet constant four times that of TGG. We also confirmed that our developed TAG (Tb3Al5O12) ceramics has the extremely low loss, high extinction ratio, and low thermal lens characteristics and achieved innovative results in the high-power range.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advanced Spinel Ceramics with Highest VUV-vis Transparency
Application of La2Zr2O7:Pr3+ Nanoparticles for Luminescence Thermometry
Beta-SiC for High Strength Windows
Ceramic Faraday Rotator for Laser Machining
Ceramic Processes for LHPG (Laser Heated Pedestal Growth)
Crystallization from Glass: Application to Transparent (Glass-)Ceramics
D-25: Crystallite Growth of Eu-doped Lanthanum Zirconate Pyrochlores Investigated via XRD Line Broadening
Development of Novel Garnet-based Transparent Ceramics for the High Power White Lighting
Development of Sc2Mo3O12:Eu3+ as a Red Phosphor with Superior Thermally Enhanced Emission
Electroluminescence During Flash Experiments Interpreted as a Solid State Plasma
Fabrication and Properties of Y2O3 Based Ceramics
High-entropy Rare-earth Aluminates: Crystal Growth and Ceramics
Investigation of Micro/Nano Mechanical Behavior of AlON Transparent Ceramics
Laser Processing of Glass, Using the Memory of Glass to Characterize the Local Modifications
Manipulable Persistent Luminescence of Pr3+-Activated Phosphors
Melt Processing of a Co-extruded LiCa2Mg2V3O12 Garnet onto a YAG Single Crystal for IR Laser Applications
Non-equilibrium Synthesis of New Oxide Materials with Modified Optical Properties
Optical Ceramic Window Materials at NRL
Polycrystalline Ceramics for Lasers: Current Potential and Limits
Reusable Multilayer Photonic Nanostructured Coatings for Optical Limiting of High Energy Lasers
Structural and Optical Properties of the Spin-coated YAG and Nd:YAG Epitaxial Films
Ultrafast High Temperature Sintering for Ceramic Membranes
Upconverting Er3+-doped Ytterbium-aluminum Garnet Ceramics
UVC and UVB Dual-band Persistent Luminescent Phosphor
Yb Doped MgO Transparent Ceramics Sintered through the SPS Method

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