MID-INFRARED QUANTUM CASCADE LASERS

By S. Edeagu. 2012

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Quantum cascade lasers: a versatile source for precise measurements in the mid/far-infrared range (2013, background): “Multi-watt output power, continuous wave, roomtemperature devices operating across the mid-IR, with wallplug efficiencies larger than 50%, have been recently reported [13, 14], with impressive performances in terms of spectral coverage (∼3–25 μm) and tunability range [15].”
Next-generation mid-infrared sources (2017, background): “recent reviews of quantum cascade and interband cascade lasers have provided substantial insight into the history, current state-of-the-art and future directions for cascade laser research and development [28, 29, 70, 71], and we will not attempt to reproduce these works here.”
Mid-infrared integrated photonics on silicon: a perspective (2017, unknown): “since their invention in the 1990s [70, 71].”
Mid-infrared octave spanning supercontinuum generation to 8.5 μm in silicon-germanium waveguides (2018, methodology): “Various approaches have been used to achieve spectrally bright mid-IR sources, such as stand-alone quantum cascade lasers (QCLs) or tunable optical parametric amplifiers (OPAs) [5,6].”