A Study of Residual Amplitude Modulation Suppression in Injection Locked Quantum Cascade Lasers Based on a Simplified Rate Equation Model

3rd International Conference on Manufacturing, Optimization, Industrial and Material Engineering

Webb, J.F.^1 ; Yong, K.S.C.^2 ; Haldar, M.K.^2

Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham Malaysia Campus, Jalan Broga, Semenyih, Selangor Darul Ehsan

43500, Malaysia^1

Faculty of Engineering, Computing and Science, Swinburne University of Technology, Sarawak Campus, Jalan Simpang Tiga, Sarawak, Kuching

93350, Malaysia^2

关键词: Coupling efficiency;    Injection locked;    Intensity modulation suppression;    Intensity modulations;    Linewidth enhancement factor;    Rate-equation models;    Residual amplitude modulation;    Specific values;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/83/1/012024/pdf
DOI  :  10.1088/1757-899X/83/1/012024

来源: IOP

【 摘 要 】

Using results that come out of a simplified rate equation model, the suppression of residual amplitude modulation in injection locked quantum cascade lasers with the master laser modulated by its drive current is investigated. Quasi-static and dynamic expressions for intensity modulation are used. The suppression peaks at a specific value of the injection ratio for a given detuning and linewidth enhancement factor. The intensity modulation suppression remains constant over a range of frequencies. The effects of injection ratio, detuning, coupling efficiency and linewidth enhancement factor are considered.