2.6 μm to 12 μm tunable ZGP parametric master oscillator power amplifier

We present a widely tunable mid infrared coherent light source based on a tandem optical parametric oscillator (OPO) and subsequent optical parametric amplification (OPA). The output wavelengths can be seamlessly tuned in the Mid-IR from 2.6 μm to 12 μm or 4000 cm -1 to 833 cm -1 respectively. Maximal output energy of 26 mJ was obtained at a wavelength of 4.25 μm.