Hamamatsu has introduced its L10195 series of quantum cascade lasers, which offer pulsed mid-infrared laser emission at room temperature. The L10195-01 has a peak emission of 7.7 μm, while the L10195-02 emits at 5.2 μm. Both models feature high output power at room temperature (typically 15 mW) and very narrow spectral linewidth (0.02 nm). Furthermore, their emission wavelength can be fine-tuned by temperature adjustment and then stabilized with a thermoelectric cooler.

Key applications of these new QCLs include high-resolution spectroscopy systems for environmental sensing and pollution monitoring, breath analysis in medical diagnosis, and industrial process control.

The L10195 series is available with an open heat sink or liquid nitrogen dewar. When cooled, the lasers can provide either pulsed or continuous wave operation. The L10195 series also includes a Fabry-Perot model for multi-mode operation at 5.2 μm and 5.7 μm.