Wide bandwidth coherent emission in the mid-infrared (mid-IR) region (2–10 μm) is of great interest in different fields, such as high-resolution molecular spectroscopy, frequency metrology, and remote sensing of environmental gases and pollutants in the atmosphere. In fact, in this spectral interval, the so called “fingerprint” region, inorganic and organic molecules show the strongest absorption features associated with fundamental ro-vibrational transitions. Among the different generation schemes, such as semiconductor lasers (quantum cascade lasers and lead salt compounds or gallium-antimonide) and nonlinear optical techniques (namely difference frequency and optical parametric generation), impurity doped crystalline lasers constitute another viable route for mid-IR generation [1]. In the last years, particular attention has been devoted to the development of Cr2+:ZnSe lasers due to excellent lasing and optical properties of this material, which represents the mid-IR analog of Ti:sapphire, and different operating regimes have been subsequently demonstrated [2].