Frequency Control of a Mid-Infrared Quantum Cascade Laser Frequency Comb by Near-Infrared Light Injection and Intensity Modulation
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)（2021）
Abstract
Mid-infrared (MIR) quantum cascade laser (QCL) frequency combs are a convenient technology for MIR dual comb spectroscopy. A common method to increase the signal-to-noise ratio in this type of applications is by mutual stabilization of the frequency combs. The mode spacing in a QCL comb can be injection-locked via electrical injection of a radio-frequency close to the repetition rate ( f rep ) [1]...
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Key words
Radio frequency,Spectroscopy,Frequency modulation,Semiconductor lasers,Optical variables control,Temperature control,Intensity modulation
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