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Sensor Assemblies using Redundant Two-Dimensional Detector Arrays Patent No. 7,786,438 Background: In the field of infrared (IR) sensing, the typical detectors used are Focal Plane Arrays (FPAs). The FPA is the major design driver in the infrared sensor. The number of pixels (individual sensing elements) in the FPA ultimately dictates the spatial resolution of the sensor; therefore, a sensor designer will generally seek to maximize the pixel count when selecting the FPA. Unfortunately, as pixel count increases, the likelihood of FPA manufacturing defects also increases. For information about this technology, please contact: Jeff Abbott 520-743-6878 [email protected] Technology Description: AFRL has developed a sensor assembly that replaces a single focal plane array detector with two focal plane array detectors orientated with respect to each other such that a power splitter divides an incoming light source equally between each detector. Market Applications: - Coherent optical imaging - Free space optical communications (FSO) - Applications where an incoherent, narrow bandwidth, optical source is needed Key Advantages: - Five concepts, each optimized for a specific application o Concept 1: effective operability of 100% o Concept 2: switchable wavelength filter, 100% operability o Concept 3: reduction of background clutter on one of the detectors o Concept 4: increase in sensor dynamic range, 100% operability o Concept 5: higher pixel density, increase in spatial resolution of sensor, 100% operability Key Words: Coherent optical imaging, Power Splitter, Focal Plane Arrays