FIS4-HR-W High-Resolution Wavefront Sensor

For a long time, the field of high-end wavefront detection has been monopolized by overseas brands, becoming a key bottleneck restricting the development of the domestic optical industry. Professor Yang Yongying's team at Zhejiang University has tackled technical challenges, broken through the core algorithm of four-wave shearing interference, and launched the 100% self-developed FIS4-HR-W high-resolution wavefront sensor. With independently controllable core technology, it provides a truly alternative solution to imports for scientific research and industrial detection.

The sensor utilizes a Randomly Encoded Hybrid Grating (REHG), enabling the simultaneous acquisition of shear interferograms in both X and Y orthogonal directions with a single imaging process, eliminating the need for multiple scans or complex optical path switching. This makes it particularly suitable for transient wavefront measurement and dynamic process monitoring, with strong real-time performance. It is applicable to beam wavefront detection, adaptive optics, planar surface shape measurement, optical system calibration, optical window plate inspection, optical plane and spherical surface shape measurement, surface roughness inspection, etc., providing reliable and traceable high-precision data support for scientific research and industrial production.

      Concurrently with the launch of the FIS4-HR-W high-resolution wavefront sensor hardware, we have also developed our proprietary analysis software. This software features a user-friendly and intuitive interface, supporting the simultaneous visualization of multi-dimensional data such as 3D topography, contour maps, phase maps, and focal spot intensity, enabling real-time dynamic acquisition and presentation of wavefront changes. The software incorporates a comprehensive data analysis module that automatically outputs core measurement parameters such as PV, RMS, POW, PSF, OTF, and MTF, significantly enhancing data processing efficiency and meeting the dual needs of scientific research analysis and industrial mass production quality inspection.

As a 100% domestically developed product, the core performance indicators of the FIS4-HR-W high-resolution wavefront sensor have been benchmarked against and partially surpassed those of similar foreign products. Based on a completely independent technical architecture, users can enjoy localized rapid response and customized development capabilities, reducing supply chain risks and truly achieving localization substitution of core components, thereby enhancing the autonomy and comprehensive competitiveness of the entire system. This is achieved through its compact optical-mechanical structure, wide wavelength coverage, intelligent supporting analysis software, and reliable localized services.