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Electrically injected nonpolar GaN-based VCSELs with lattice-matched nanoporous distributed Bragg reflector mirrors
- Source :
- Applied Physics Express. 12:036504
- Publication Year :
- 2019
- Publisher :
- IOP Publishing, 2019.
-
Abstract
- We demonstrate the first electrically injected nonpolar m-plane GaN-based vertical-cavity surface-emitting lasers (VCSELs) with lattice-matched nanoporous bottom DBRs. Lasing under pulsed operation at room temperature was observed near 409 nm with a linewidth of ~0.6 nm and a maximum output power of ~1.5 mW. The VCSELs were linearly polarized and polarization-locked in the a-direction, with a polarization ratio of 0.94. The high polarization ratio and polarization pinning reveal that the optical scattering from the nanoporous DBRs is negligible. A high characteristic temperature of 357 K resulted from the slightly negative offset between the peak gain and cavity mode wavelengths.
- Subjects :
- 010302 applied physics
Materials science
Nanoporous
business.industry
Linear polarization
General Engineering
Physics::Optics
General Physics and Astronomy
02 engineering and technology
021001 nanoscience & nanotechnology
Laser
Distributed Bragg reflector
Polarization (waves)
01 natural sciences
Light scattering
law.invention
Laser linewidth
law
0103 physical sciences
Optoelectronics
0210 nano-technology
business
Lasing threshold
Subjects
Details
- ISSN :
- 18820786 and 18820778
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Applied Physics Express
- Accession number :
- edsair.doi...........84f22efe8de638e1d6dc5f3e6b071ee2