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Meeting MS&T22: Materials Science & Technology
Symposium Solid-state Optical Materials and Luminescence Properties
Presentation Title Melt Processing of a Co-extruded LiCa2Mg2V3O12 Garnet onto a YAG Single Crystal for IR Laser Applications
Author(s) John Drazin, Hyunjun Kim, Kathryn Doyle, Andrew Schlup, Cynthia Bowers, Randall Hay, Kent Averett
On-Site Speaker (Planned) John Drazin
Abstract Scope YAG single crystals are being manufactured with sub-100 micron diameters (core fiber) for future IR high power generation applications. At these narrow diameters, the multimodal beam extends past the core fiber diameter which requires an optical cladding to maintain beam quality and power density in the laser system. Current YAG core fibers are coated with ceramic glasses, but these materials possess low thermal conductivities (~1W/m*K) which limits core fiber heat dissipation. Adding a crystallized ceramic would improve the thermal conductivity, but many viable options could leach out dopants from the core fiber during sintering. Therefore, in this work, a novel low melting temperature (1115C) LiCa2Mg2V3O12 garnet was synthesized and applied onto a single crystal 150um diameter YAG fiber in a water based paste and subsequently melted onto the core fiber. Thermal properties of the cladding material were measured and the cladding microstructure was observed using SEM and TEM.

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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