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Abstract
Active EO sensors employ coherent sources in the wavelength region from the LWIR (around 10 μm) to the atmospheric transmission limit for UV light (around 200 nm). The sources can be based either on lasers or on nonlinear optical systems driven by lasers. Lasers are typically categorized by the type and format of the medium used to generate their output, which at the highest level are gases, liquids, and solids.
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