Jeremy A. Massengale, Yixuan Shen, Rui Q. Yang, Samuel D. Hawkins, Aaron J. Muhowski
We report on the substantial advancement of long wavelength InAs-based interband cascade lasers (ICLs) utilizing advanced waveguides formed from hybrid cladding layers and targeting the 10-12 µm wavelength region. Modifications in the hole injector have improved carrier transport in these ICLs, resulting in significantly reduced threshold voltages as low as 3.62 V at 80 K.
