Investment in high-power fiber laser technology for industrial processing and military applications has enabled commercial lasers with hundreds of Watts of diffraction-limited output to come to market. These lasers are ideal pump sources for high-power (10s to 100s of Watts), widely tunable optical parametric oscillators which may be tuned from the visible to the mid-infrared (600nm to 4600nm wavelength), with linewidth and tuning properties suitable for atomic physics research. We will discuss the capabilities of such sources and describe user applications of Lockheed Martin’s Argos OPO product, which is already widely used in high resolution spectroscopy research.