Widely tunable single-mode slot waveguide quantum cascade laser array

• Main Authors: Li, Jinghao, Sun, Fangyuan, Jin, Yuhao, 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: 2022
• Subjects: Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics; Quantum Cascade Laser; Infrared Devices
• Online Access: https://hdl.handle.net/10356/155554
• Institution: Nanyang Technological University

We report designs and experimental demonstrations of a widely tunable single-mode quantum cascade laser array based on slot waveguide structures in the mid-infrared region. The laser array device realized a continuous tuning range of 71 cm-1 from 9.66 μm to 10.37 μm at 300 K only using the current t...