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

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-μm-wide laser ridges. Multimode laser emission with an average full width at half maximum...

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Bibliographic Details
Published inAIP advances Vol. 2; no. 3; pp. 032130 - 032130-7
Main Authors Guziy, O., Grzanka, S., Leszczyński, M., Perlin, P., Schemmann, M., Salemink, H. W. M.
Format Journal Article
LanguageEnglish
Published AIP Publishing LLC 01.09.2012
Subjects
Electronics
Emission
Gallium nitrides
Holes
Indium gallium nitrides
Joining
Lasers
Tuning
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Summary: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-μm-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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:2158-3226
2158-3226
DOI:10.1063/1.4742971