The proposed non-intrusive Optical Mach Probe is essential across multiple aerospace ground and flight research support facilities in characterizing and understanding of the complex flow behavior in terms of flow quality, turbulence intensity, and Mach number measured up to and including hypersonic speed regimes. The probe also could be used for on-board monitoring of vehicle dynamics and propulsion processes as well as in aiding the development of new computational models. Other organizations (US Air Force, US Navy, etc.) and prime contractors will have similar uses for this technology. Also, the academic and scientific community will have use for the instrument for high speed flow studies and CFD modeling.