1.142 mu m GaAsBi/GaAs Quantum Well Lasers Grown by Molecular Beam Epitaxy
Journal article, 2017
As a promising new class of near-infrared light emitters, GaAsBi laser diodes (LDs) are considered to have a high energy efficiency and an insensitive temperature dependence of the band gap. In this paper, we realize the longest ever reported lasing wavelength up to 1.142 mu m at room temperature in GaAsBi0.058/GaAs quantum well LDs grown by molecular beam epitaxy. The output power is up to 127 mW at 300 K under pulsed mode. We also demonstrate continuous wave mode operation up to 273 K for the first time. The temperature coefficient of the GaAsBi/GaAs LD is 0.26 nm/K in the temperature range of 77-350 K, lower than that of both InGaAsP/InP and InGaAs/GaAs LDs. The characteristic temperature is extracted to be 139 K in the temperature range of 77-225 K and decreases to 79 K at 225-350 K.
Gainnas
Recombination
uncooled laser
Gaas1-Xbix
GaAsBi
Wavelength
laser diodes
Diodes
Band-Gap
molecular beam epitaxy
Semiconductor-Lasers
Temperature-Dependence
quantum well
Author
X. Y. Wu
Chinese Academy of Sciences
Technical University of Denmark (DTU)
W. W. Pan
Chinese Academy of Sciences
Z. P. Zhang
Chinese Academy of Sciences
ShanghaiTech University
Y. Li
Chinese Academy of Sciences
C. F. Cao
Chinese Academy of Sciences
J. J. Liu
Chinese Academy of Sciences
L. Y. Zhang
Chinese Academy of Sciences
Y. X. Song
Chinese Academy of Sciences
H. Y. Ou
Technical University of Denmark (DTU)
Shu Min Wang
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
ACS Photonics
2330-4022 (eISSN)
Vol. 4 6 1322-1326Subject Categories
Atom and Molecular Physics and Optics
Condensed Matter Physics
DOI
10.1021/acsphotonics.7b00240