期刊
APPLIED PHYSICS EXPRESS
卷 12, 期 3, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.7567/1882-0786/ab0576
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资金
- National Science Foundation (NSF) [1454691]
- U.S. Department of Energy's National Nuclear Security Administration [DE-NA0003525]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1454691] Funding Source: National Science Foundation
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 similar to 0.6 nm and a maximum output power of similar to 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. (C) 2019 The Japan Society of Applied Physics
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