High-Speed Scanning Interferometer Using CMOS Image Sensor and FPGA Based on Multi-Frequency Phase-Tracking Detection, Phase I

In this SBIR, we propose a new type of laser interferometer engine for in-situ large optics inspection and metrology and supporting system platform. The proposed FPGA signal processing concept together with new generation high-speed CMOS image sensor enables high speed (> 1m/sec) and real-time continuous surface profiling with minimum local memory. This transforms the currently available laser interferometer into a sub-nanometer precision instrument with only minor modification while providing easy scalability for large optic surface testing and measurement capability simultaneously.

This is a mature technology (TRL 7+) — the realistic path in is usually NASA's Technology Transfer Program: licensing an existing NASA patent, or a Space Act Agreement to use NASA facilities/expertise directly. NASA also runs a startup licensing program with no upfront fee for companies formed to commercialize a specific NASA technology.

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