Volume 24 -                   ICOP & ICPET _ INPC _ ICOFS 2018, 24 - : 257-260 | Back to browse issues page

XML Persian Abstract Print

Analysis and simulation of static and dynamic characteristics of an external-cavity quantum cascade laser
Sahar Farokh-zadeh * 1, Hossein Reza Yousefvand1 , Mohammad Bahador Najafi1
1- Faculty of Engineering, Department of Electrical Engineering, Islamic Azad University, Islamshahr branch
Abstract:   (2441 Views)
Based on a two-level rate-equation approach a numerical model is presented here to analyze the external-cavity (EC) quantum cascade lasers (QCLs). Using the presented model, the static and dynamic characteristics of an EC-QCL are computed and analyzed. Simulated results show that due to the longer photon-lifetime in the EC (compared to the internal-cavity), the external emission mode dominates on the internal mode. Additionally, the laser wavelength can be tuned by the change of photon lifetime in the EC, which are determined by the physical length of EC. Transient results obtained from this work are in agreement with experiment data reported earlier.
Keywords: External Cavity, Quantum Cascade Laser, Rate equations, Wavelength tenability.
Full-Text [PDF 956 kb]   (823 Downloads)    
Type of Study: Research | Subject: Special
Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.