4.6 Article

Epitaxial Nd3+:YAG/YAG waveguide laser

Journal

OPTICAL MATERIALS EXPRESS
Volume 12, Issue 10, Pages 3894-3903

Publisher

Optica Publishing Group
DOI: 10.1364/OME.468548

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Funding

  1. National Centre for Research and Development
  2. [N N515 342036]

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Solid state lasers with a planar Nd,Lu,Ga:YAG/YAG waveguide structure were created using liquid phase epitaxy. The method allows for obtaining different Nd3+ ion concentrations and achieving lasing operation at room temperature. This research provides a new approach for high-efficiency and stable solid state lasers.
Solid state lasers with a planar Nd,Lu,Ga:YAG/YAG waveguide structure have been created using liquid phase epitaxy. The method used to produce such epitaxial structures ensures obtaining Nd3+ ions concentration in the range from 1 at.% to 3 at.% in waveguiding thin films. Spectroscopic characterization of active films was performed. The Nd,Lu,Ga:YAG waveguide for each neodymium ions concentration exhibited lasing operation at room temperature at a wavelength of 1064 nm with impulse laser diodes pumping at 808 nm and 885 nm. The maximum average output power Pav = 2.6 mW and 72.2% slope efficiency was obtained for 1 at.% Nd3+ waveguide pumped at 885 nm.(c) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

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