Wavelength Shift Detector

Wavelength-encoded optical sensors

Many optical sensors rely on a shift of wavelength as the response to a stimulus. The challenge is that the wavelength shift is typically very small, on the order of a picometer, and massively parallel readout is desired. Conventional interrogation instruments do not offer all of the required features: high spectral resolution, broad spectral range, high read-out speed, robustness and compactness, reasonable cost/complexity, and the ability to spatially resolve the signal.

We developed a breakthrough “wavelength shift detector” technology capable of monitoring light sources and reading signals from wavelength-encoded optical sensors with unprecedented resolution in a compact, low-cost unit. This technology is applicable for interrogating fiber optic (FO) sensors (e.g., fiber Bragg grating sensors) as well as colorimetric sensors.

Our unique interdisciplinary teams across hardware and software have enabled the development and applications of our wavelength shift detector technology. We’re at the cutting edge of developing hardware for FO sensing that will dramatically reduce the cost and size of the device. In addition, our data science team has extensive experience developing models for energy systems and structural health monitoring. Working prototypes of our wavelength shift technology are available.

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