Highly efficient, low-threshold monolithic distributed-Bragg-reflector channel waveguide laser in Al2O3:Yb3+

Edward Bernhardi, Hendricus A.G.M. van Wolferen, Kerstin Worhoff, R.M. de Ridder, Markus Pollnau

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    We report the fabrication and performance of a highly efficient, monolithic distributed-Bragg-reflector channel waveguide laser in ytterbium-doped aluminum oxide. The 1 cm long device was fabricated on a standard thermally oxidized silicon substrate and was optically pumped with a 976nm laser diode. Single-longitudinal-mode and single-polarization operation was achieved at a wavelength of 1021.2nm. Continuous-wave output powers of up to 47mW and a launched pump power threshold of 10mW resulted in a slope efficiency of 67%.
    Original languageUndefined
    Pages (from-to)603-605
    Number of pages3
    JournalOptics letters
    Issue number5
    Publication statusPublished - 17 Feb 2011


    • IOMS-APD: Active Photonic Devices
    • METIS-277556
    • IR-76061
    • EWI-19663

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