Extended-SWIR Targeting Sensor

ABSTRACT:Current military systems laser rangefinding and designation systems require multiple detectors, which make such systems large, heavy, and power hungry, which limits application to larger, high-value platforms. The proposed Phase II program addresses the need for a single, compact high-resolution SWIR imager with see-spot/time-spot capabilities. In the Phase II program, Voxtel will develop a dual-mode (active/passive) focal plane array (FPA) capable of simultaneous active tracking of laser spots and high resolution passive SWIR imaging during both daytime and nighttime operations. The proposed FPA has the ability to asynchronously time the arrival of laser pulses, enabling it to range targets and read pulse repetition frequency (PRF) codes, as well as centroid the laser spot for tracking or guidance applications while simultaneous performing low light level SWIR imaging of the target and scene.In this 24-month program, a fully-functional dual-mode readout integrated circuit (ROIC) will be fabricated, tested, and hybridized to an InGaAs detector array. The prototype active/passive FPA will be characterized and each of its operating modes demonstrated. The ability to scale the innovation to high resolution formats will be shown.BENEFIT:No currently fielded single device that can see the laser spot from eye-safe laser range finders exists. A simultaneous active/passive imaging device will provide persistent surveillance, an unmanned aircraft system (UAS), airborne laser targeting pods, Forward Air Controller (FACs) and combat controller ground targeting systems, laser guided munitions, dismounted warfighters, and active/passive imaging that simultaneously shows the scene, the target area, and laser energy from pointers, designator/markers, or rangefinders.