Linewidth broadening caused by intrinsic temperature fluctuations in quantum cascade lasers

• Main Authors: Liu, T., Wang, Qi Jie
• Other Authors: School of Electrical and Electronic Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio
• Online Access: https://hdl.handle.net/10356/95886; http://hdl.handle.net/10220/10069
• Institution: Nanyang Technological University

The intrinsic narrow linewidth of quantum cascade lasers (QCLs) promises wide applications such as highsensitive trace-gas detection. However, so far limited work has been reported in intrinsic linewidth characteristics of QCLs. In this paper, we theoretically investigate the linewidth broadening ca...