J. Abell

TL;DR: Simulations demonstrate that all previous interband cascade laser performance has suffered from a significant imbalance of electron and hole densities in the active wells, and confirm experimentally that correcting this imbalance with relatively heavy n-type doping in the electron injectors substantially reduces the threshold current and power densities relative to all earlier devices.

TL;DR: In this paper, the authors review the current status of interband cascade lasers (ICLs) emitting in the mid-wave infrared (IR) and discuss theoretical aspects of the active region and core designs, growth by molecular beam epitaxy, and the processing of broad-area, narrow-ridge, and distributed feedback (DFB) devices.

TL;DR: In this article, a five-stage interband cascade laser that operates at λ=3.75μm in cw mode up to a maximum temperature of 319K was reported.

TL;DR: In this article, the mid-wave infrared interband cascade laser (ICL) can operate at threshold power densities 30 times lower than those of the quantum cascade laser at wavelengths from 2.9 to 5.5 μm.

TL;DR: The interband cascade laser (ICL) concept provides robust and efficient emission in the mid-wave infrared spectral band as discussed by the authors, where a semimetallic band overlap at the boundary between the electron and hole injector regions automatically generates carriers with densities tunable by quantum confinement.