Abstract
Room-temperature operation of long-wavelength, Fabry–Perot and single-mode quantum-cascade lasers at λ≈16 μm is reported. Multimode emission with pulsed peak power up to 400 mW at −40 °C and 220 mW at 30 °C is demonstrated. Single-mode emission up to 60 mW peak power has been achieved at 30 °C.
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