Passive Optical Taggants for Laser Designated Friend or Foe Identification

ABSTRACT: TIAX will develop a passive (unpowered) optical taggant device that responds with a signal in the 3-5 micron atmospheric transmission band when probed with a short-wave infrared laser. The device will be suitable for Identification Friend or Foe applications for US military and allies. It will be low-cost, robust, and easy to install in the field in a variety of shapes or cross-sections. The emission spectral signature will be confined to a narrow band, and features to promote covertness and avoid spoofing are included. BENEFIT: The technology will provide a tool for fratricide prevention that is designed for air- or vehicle-based identification of friendly dismounted personnel. Many issues with previous technology are addressed. The device is unpowered, lightweight, easy to use and is easily detectable, but operates outside the range of common night vision equipment so that it does not compromise concealed troops. This device will provide a useful tool for avoidance of friendly fire incidents under many operating conditions.