Why cryogenic sensors may switch to light: New laser moves data fast with less heat

FPAs are image sensors that convert infrared light into electrical signals to produce real-time thermal images and are widely used in applications such as surveillance, astronomy and industrial monitoring. Advances in cryogenic FPAs have enabled higher resolution, sensitivity and faster imaging, but they also require data rates exceeding 100 gigabits per second. Conventional electrical interconnects used to support these demands increase heat load through copper connections, which can leak into FPAs, raise noise, and increase cooling requirements and power consumption.

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