Long wavelength (λ > 13 μm) quantum cascade laser based on diagonal transition and three-phonon-resonance design

• Main Authors: Jin, Yuhao, Li, Jinghao, Chua, Yun Da, Tan, Kian Hua, Wicaksono, Satrio, Sirtori, Carlo, Yoon, Soon Fatt, Wang, Qi Jie
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering::Electrical and electronic engineering; III-V Semiconductors; Indium Phosphide
• Online Access: https://hdl.handle.net/10356/153565
• Institution: Nanyang Technological University

An InP-based quantum cascade laser structure emitting at a wavelength of 13.6 μm is proposed and demonstrated. The active region is based on a diagonal transition and three-phonon-resonance design. A 5 mm long, 30 μm wide high-reflection coated device with a double channel ridge waveguide structure...