[IEEE 2019 IEEE Photonics Conference (IPC) - San Antonio, TX, USA (2019.9.29-2019.10.3)] 2019 IEEE Photonics Conference (IPC) - Quantum Cascade Laser using Oxidation Confinement Layers

摘要： We investigate the oxidation confinement method applied in the active layer of the ridge waveguide Quantum Cascade Laser (QCL). Threshold current of the ridge oxidized QCL is lower than the conventional one, suggesting that the current is constricted by the oxidized layers.