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

Journal article (2012)
Department
Quantum Nanoscience (EEMCS) (TU Delft)
Copyright: This article is distributed under a Creative Commons Attribution 3.0 Unported License
Indium compounds Semiconductor lasers Gallium compounds Laser cavity resonators Refractive index
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Published Date

01-08-2012

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Source:

AIP Advances, 2 (3), 2012

ISSN:

2158-3226

Source:

http://aipadvances.aip.org/resource/1/aaidbi/v2/i3/p032130_s1

Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Quantum Nanoscience

Abstract

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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