Pictured is the setup of the 100 kHz burst-mode laser-based KTV system, which includes the high-energy burst-mode laser and high-speed Optical Parametric Oscillator. The OPO was developed by Spectral Energies, LLC as part of a Small Business Innovation Research project funded to the company to look into increasing the data rates for the measurement of velocities in hypersonic wind tunnels. The SBIR project was successfully demonstrated at Arnold Engineering Development Complex Hypervelocity Wind Tunnel 9. (U.S. Air Force photo)