Neodymium-doped laser gain ceramics: exploring Nd as an active laser ion in YAG and fine-grain Al2O3 ceramics

Ian R. Phillips; Ross E. Turner; J. E. Garay

doi:10.1117/12.3012631

11 April 2024 Neodymium-doped laser gain ceramics: exploring Nd as an active laser ion in YAG and fine-grain Al₂O₃ ceramics

Ian R. Phillips, Ross E. Turner, J. E. Garay

Author Affiliations +

Proceedings Volume 12939, High-Power Laser Ablation VIII; 1293911 (2024) https://doi.org/10.1117/12.3012631
Event: SPIE High-Power Laser Ablation, 2024, Santa Fe, New Mexico, United States

Conference Poster

Abstract

Despite Neodymium laser systems being well-established and ever popular, there is motivation to improve gain and scale in inexpensive host materials such as Yttrium Aluminum Garnet (YAG) and Fine-Grain Al₂O₃. Thermal management through host materials with improved thermal properties is a promising pathway to stronger pumping and subsequently higher gain. Benefits of polycrystalline ceramic gain media, as well as various ceramic fabrication methods will be discussed. While polycrystalline Nd:YAG can be fabricated using traditional densification techniques of sintering and Hot Isostatic Pressing (HIP), in order to create polycrystalline Nd:Al₂O₃, one must turn to Current-Activated Pressure-Assisted Densification (CAPAD), a method of ceramic fabrication that utilizes high heating rates and pressure to reduce hold temperatures and times, reducing diffusion and subsequent grain growth.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ian R. Phillips, Ross E. Turner, and J. E. Garay "Neodymium-doped laser gain ceramics: exploring Nd as an active laser ion in YAG and fine-grain Al₂O₃ ceramics", Proc. SPIE 12939, High-Power Laser Ablation VIII, 1293911 (11 April 2024); https://doi.org/10.1117/12.3012631

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