Towards high-quality optical ceramic YAG fibers for high-energy laser (HEL) applications

HeeDong Lee; Kristin Keller; Brian Sirn

doi:10.1117/12.922770

11 May 2012 Towards high-quality optical ceramic YAG fibers for high-energy laser (HEL) applications

HeeDong Lee, Kristin Keller, Brian Sirn

Proceedings Volume 8381, Laser Technology for Defense and Security VIII; 838113 (2012) https://doi.org/10.1117/12.922770
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

There is a critical demand for high quality, transparent ceramic YAG fibers for high powered fiber lasers. The production of laser quality ceramic fibers hinges on advanced ceramic processing technology, along with the availability of highly sinterable powder with high phase and chemical purity. These two fundamental technologies have been successfully developed at UES. Nd (1.1 a/o) and Yb (1.0 a/o)-doped yttrium aluminum garnet (YAG) fibers with high optical quality were produced by combining UES's tailored powders with advanced consolidation processes including fiber extrusion and vacuum sintering. The as-sintered and as-annealed fibers, approximately 30 microns in diameter, appeared transparent and successfully transmitted laser beams; further development will allow for the production of doped ceramic YAG fiber lasers for advanced high power and high energy fiber laser systems.

Citation Download Citation

HeeDong Lee, Kristin Keller, and Brian Sirn "Towards high-quality optical ceramic YAG fibers for high-energy laser (HEL) applications", Proc. SPIE 8381, Laser Technology for Defense and Security VIII, 838113 (11 May 2012); https://doi.org/10.1117/12.922770

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