Precise wavefront testing with computer-generated holograms
The AOM CGHs for interferometric measurement of complex optics significantly enhance the performance of modern interferometry systems. Computer-generated holograms (CGHs) from Arizona Optical Metrology enable the high-precision inspection of sophisticated optical components that could not be reliably measured with standard references. These include aspheres, cylindrical optics, convex and concave optics and other complex free-form geometries.
While conventional interferometers reach their limits with strongly deviating wavefronts, diffractive optics in the AOM CGHs shape the wavefront specifically for the respective test object. This enables interferometric measurement across the entire aperture. The AOM CGHs for interferometric measurement of complex optics thus offer a precise and reproducible solution for the highest demands in research, development and production.
Diffractive optics for maximum measuring accuracy
The computer-generated hologram produces a precisely defined reference wavefront that is optimally adapted to the geometry of the test optics. This means that even complex surface shapes can be tested interferometrically without having to resort to complex mechanical reference bodies.
This technology makes a significant contribution to quality assurance, particularly in high-precision applications - for example in laser optics, the semiconductor industry or medical technology. At the same time, the customized design of the CGH reduces measurement uncertainties and improves reproducibility.
Kinematic CGH cell for fast and reproducible adjustment
A central feature of the AOM CGHs for interferometric measurement of complex optics is the kinematic CGH cell. This has defined reference points for exact alignment with the test optics and the interferometer. Thanks to the precise mechanical interfaces, the CGH cell snaps into customer-specific positioning systems with repeatable accuracy.
This considerably reduces adjustment times, which represents a significant efficiency gain, especially in production environments. At the same time, the high measuring accuracy is permanently guaranteed.
Flexible use of different CGHs in the same measurement setup
In addition, the system makes it easy to switch between different CGHs. Converting to other holograms is easy, so that different optics can be tested with the same interferometry setup.
Users therefore benefit from maximum flexibility and reduced set-up times. The combination of diffractive optics, precise mechanics and a sophisticated positioning system makes the AOM CGHs a powerful solution for interferometric precision measurements.
For detailed technical specifications or an individual design, we recommend contacting us directly. We will be happy to prepare a customized offer for your specific requirements in the field of interferometry, wavefront analysis and optical measurement technology.
