Photonic generation of stable microwave signals from a dual-wavelength Al2O3:Yb3+ distributed-feedback waveguide laser

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

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    39 Citations (Scopus)


    We report the fabrication and characterization of a dual-wavelength distributed-feedback channel waveguide laser in ytterbium-doped aluminum oxide. Operation of the device is based on the optical resonances that are induced by two local phase shifts in the distributed-feedback structure. A stable microwave signal at ∼15 GHz with a −3 dB width of 9 kHz was subsequently created via the heterodyne photodetection of the two laser wavelengths. The long-term frequency stability of the microwave signal produced by the free-running laser is better than 2.5 MHz, while the power of the microwave signal is stable within 0.35 dB.
    Original languageUndefined
    Pages (from-to)181-183
    Number of pages3
    JournalOptics letters
    Issue number2
    Publication statusPublished - 15 Jan 2012


    • IOMS-APD: Active Photonic Devices
    • IR-79487
    • METIS-284994
    • EWI-21242

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