DOE OSTI · 2571720
Ink-sprayed transparent ceramic multilayer planar waveguides for ribbon lasers
Abstract
Multilayer transparent ceramic planar waveguides were fabricated using a newly developed particle-loaded ink spraying method, characterized, and lased. Waveguides with five Yb:YAG gain regions and four Lu:YAG index-matched regions were produced for application as a “ribbon laser,” as well as a homogeneous Yb:YAG waveguide. Elemental mapping revealed that the waveguide thicknesses varied from 40 to 69 μm, comprised of layers of less than 10 µm. The Yb concentration profiles were fit to a diffusion profile. The homogeneous and multilayer waveguides were tested in a laser cavity and produced similar slope efficiencies, with a maximum of 31% achieved. In conclusion, their beam profiles provided evidence of the ribbon structure affecting the preferred mode.
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Osborne, Ross [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Univ. of Central Florida, Orlando, FL (United States)] (ORCID:0000000170492520), Cherepy, Nerine [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)] (ORCID:000000018561923X), Gaume, Romain [Univ. of Central Florida, Orlando, FL (United States)], Boro, Joseph [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)], Payne, Stephen [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]. 2025-03-11. Ink-sprayed transparent ceramic multilayer planar waveguides for ribbon lasers. https://doi.org/10.1364/ol.554532
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