Source: ResearchGate Understanding Detectivity in Photodetectors Understanding Detectivity in Photodetectors In the realm of photonics, photodetectors play a crucial role in sensing and measuring light. A key performance metric for these devices is detectivity, which determines their ability to detect weak signals in the presence of noise. This article delves into the concept of detectivity, […]
Source: Nature Understanding Balanced Photodetection Understanding Balanced Photodetection Introduction to Balanced Photodetection Balanced photodetection, also known as differential photodetection, is a sophisticated technique used to detect small differences in optical power between two input signals. This method is particularly effective in suppressing common fluctuations in the inputs, making it invaluable in various scientific and industrial
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Source: BEAT NOTE Understanding Optical Beat Notes Introduction When two laser beams with different optical frequencies overlap, they create a phenomenon known as a beat note. This beat note is a signal that represents the difference between the optical frequencies of the two lasers. Understanding optical beat notes is crucial in various applications within the
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Source: Lockheed Martin Focal Plane Arrays Focal Plane Arrays Overview In photonics, a focal plane array (FPA) is an array of light detectors placed in the focal plane of an imaging system. It consists of a large number of detectors arranged in a two-dimensional array. FPAs can be used in various applications due to their
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