Automated interferometer AccuFiz Duo

digitallaserFizeau

The AccuFiz Duo’s short coherence mode performs onaxis dynamic measurements, incorporating patented technology using a single camera, high-speed phase sensor that makes a wavefront measurement in as little as 150 microseconds. The result is highly accurate measurements, even in the presence of vibration and turbulence. The short coherence length source enables measurement of plane parallel glass surfaces down to 0.2mm thickness without needing to coat either surface to eliminate unwanted fringes. Other applications include remote cavity measurements, testing index homogeneity, and testing in environmental chambers. A fast, automated internal system lets you quickly scan to locate and isolate each surface. The AccuFiz Duo’s additional long coherence source uses a stabilized HeNe laser and operates with all the benefits of a standard phase shifting Fizeau interferometer. The long coherence mode enables very long cavity measurements and has spatial carrier dynamic mode as an option for vibration and turbulence mitigation. It is also useful for standard radius of curvature measurements. The 632.8nm HeNe source facilitates measurements with digital holograms.