Pulsed laser deposited epitaxial garnet films for efficient low threshold waveguide lasers

Abstract

Pulsed laser deposition is a mature technique capable of producing extremely high quality epitaxial single crystalline films. We have grown doped garnet films (Gd₃Ga₅O₁₂) on YAG substrates, with thicknesses from a few μm to more than 100 μm for both single mode and multimode waveguide applications. Our best losses for single mode guides are less than 0.1dB cm^-1, and the resulting structures yield excellent waveguide lasing.

XII International Conference on Laser Optics St Petersburg, Russia 26-30 Jun (2006)

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