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physics.optics2022
High-Resolution Quantum Cascade Laser Dual-Comb Spectroscopy in the Mid-Infrared with Absolute Frequency Referencing
Kenichi N. Komagata, Valentin J. Wittwer, Thomas Südmeyer +2
Quantum cascade laser (QCL) frequency combs have revolutionized mid-infrared (MIR) spectroscopy by their high brightness and fast temporal resolution, and are a promising technolog…
physics.optics2022★ 16 cited
Synchronization of frequency combs by optical injection
Johannes Hillbrand, Mathieu Bertrand, Valentin Wittwer +8
Optical frequency combs based on semiconductor lasers are a promising technology for monolithic integration of dual-comb spectrometers. However, the stabilization of the offset fre…