Modern electro-optical systems contain several components such as thermal imager, laser designator, laser range finder, etc. The dem and for com pact syste ms w ith l ow po wer co nsumption an d l ow cost can be ad dressed by i ncorporating some of the traditional system abilities into the IR detector. We present SNIR, a new type of detector, which consists of a Read O ut Int egrated C ircuit (R OIC) wi th adva nced o n-chip si gnal p rocessing. T he R OIC i s fl ip chi p-bonded to a 640×512 In Sb det ector ar ray of 1 5µm pi tch. S NIR di gital R OIC can b e ope rated i n either o ne of t he f ollowing f our different modes of operation. The first operation mode is standard thermal imaging, which has typical functionalities and performance of MWIR detector. The second operation mode is a dual-function mode that includes both standard thermal imaging and information on Asynchronous Laser Pulse Detection (ALPD) for each pixel. The detection probability of a laser pu lse is significantly in creased by i ntegrating a dedicated i n-pixel circu it fo r iden tifying a fast sig nal tem poral profile. Since each pixel has internal processing to ide ntify laser pulses, it is possible a lso to m easure the ela psed time between a trigg er and th e detection of a laser pulse. Th is yi elds a t hird m ode of operation i n which the detector i s synchronized t o a l aser an d becomes a Tw o-dimensional Laser R ange Finder (TLRF). T he forth operation m ode i s dedicated to Low Noise Imaging (LNIM) for the SWIR band, where the IR radiation signal is low. It can be used in both passive or active imaging. We review some of t he predicted and measured results for the different modes of operation, both at the detector level and at the system level.
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