3 September 2008 InAs quantum-dot intersubband optical amplifier
Author Affiliations +
A coupled quantum dot intersubband optical amplifier structure is reported. InGaAsP/GaAs supperlattice is used to effectively generate population inversion between the excited states and the ground state of the QD. Due to the three-dimensional quantum confinement, normal incidence optical amplification with low threshold current density can be expected. Such an intersubband optical amplifier is promising for highly-sensitive middle infrared (MWIR) and longwave infrared sensing and imaging.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xuejun Lu, "InAs quantum-dot intersubband optical amplifier", Proc. SPIE 7055, Infrared Systems and Photoelectronic Technology III, 705503 (3 September 2008); doi: 10.1117/12.796706; https://doi.org/10.1117/12.796706

Back to Top