Electronic tuning of integrated blue-violet GaN tunable coupled-cavity laser

Article English OPEN
O. Guziy ; S. Grzanka ; M. Leszczyński ; P. Perlin ; M. Schemmann ; H. W. M. Salemink (2012)
  • Publisher: AIP Publishing LLC
  • Journal: AIP Advances (issn: 2158-3226)
  • Related identifiers: doi: 10.1063/1.4742971
  • Subject: Physics | QC1-999
    arxiv: Physics::Optics | Astrophysics::Cosmology and Extragalactic Astrophysics

We demonstrate an integrated tunable coupled-cavity InGaN/GaN laser with the emission wavelength centered on 409 nm. The electronic tuning range was 1.6 nm and threshold currents were 650 mA per cavity for 8.7-?m-wide laser ridges. Multimode laser emission with an average full width at half maximum of 0.3 nm was observed. We estimate the refractive index change due to free-carrier injection and optical gain to explain the experimental tuning range.
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