Monolithic erbium- and ytterbium-doped microring lasers on silicon chips.

  title={Monolithic erbium- and ytterbium-doped microring lasers on silicon chips.},
  author={Jonathan D. B. Bradley and Ehsan shah Hosseini and Purnawirman and Zhan Su and Thomas N. Adam and Gerald Leake and Douglas D. Coolbaugh and Michael Robert Watts},
  journal={Optics express},
  volume={22 10},
We demonstrate monolithic 160-µm-diameter rare-earth-doped microring lasers using silicon-compatible methods. Pump light injection and laser output coupling are achieved via an integrated silicon nitride waveguide. We measure internal quality factors of up to 3.8 × 105 at 980 nm and 5.7 × 105 at 1550 nm in undoped microrings. In erbium- and ytterbium-doped microrings we observe single-mode 1.5-µm and 1.0-µm laser emission with slope efficiencies of 0.3 and 8.4%, respectively. Their small… CONTINUE READING
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