The AFRL laser applications group is developing a 1.5 micrometers active TV system for use in military and law enforcement surveillance applications. AFRL supports novel semiconductor laser diode development, recently achieving high power 1.5 micrometers devices capable of providing sufficient illumination for an active TV system. This paper present the components of the 1.5 micrometers system and compares its performance to that of a near-IR active TV system operating at 0.81 micrometers . A qualitative approach is taken to study the reflective phenomenology of the two system to determine if operation at 1.5 micrometers is viable and advantageous.
Matthew L. Gurney,
John M. Kelly,
"Design and field testing of a 1.5-μm active TV system", Proc. SPIE 3698, Infrared Technology and Applications XXV, (26 July 1999); doi: 10.1117/12.354525; https://doi.org/10.1117/12.354525