Ultra-narrow-linewidth, single-frequency distributed feedback waveguide laser in Al2O3:Er3+ on silicon

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

    Research output: Contribution to journalArticleAcademicpeer-review

    144 Citations (Scopus)


    We report the realization and performance of a distributed feedback channel waveguide laser in erbium-doped aluminum oxide on a standard thermally oxidized silicon substrate. The diode-pumped continuous-wave laser demonstrated a threshold of 2.2 mW absorbed pump power and a maximum output power of more than 3 mW with a slope efficiency of 41.3% versus absorbed pump power. Single-longitudinal-mode and single-polarization operation was achieved with an emission linewidth of 1.70+-0.58 kHz (corresponding to a Q factor of 1.14 × 10e11), which was centered at a wavelength of 1545.2 nm.
    Original languageEnglish
    Pages (from-to)2394-2396
    Number of pages3
    JournalOptics letters
    Issue number14
    Publication statusPublished - 15 Jul 2010


    • IOMS-APD: Active Photonic Devices
    • Lasers
    • single-mode
    • EWI-18102
    • IR-72296
    • Integrated Optics
    • Erbium
    • METIS-276044
    • Distributed-feedback


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