Journal
OPTICAL ENGINEERING
Volume 56, Issue 3, Pages -Publisher
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.OE.56.3.031203
Keywords
gated-viewing; range-gating; active imaging; short-wavelength infrared
Categories
Funding
- Bundeswehr Technical Center for Weapons and Ammunition (WTD 91) in Meppen
- Bundeswehr Technical Center for Ships and Naval Weapons (WTD 71) site Surendorf
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This paper reviews the work that has been done at Fraunhofer IOSB (and its predecessor institutes) in the past ten years in the area of laser gated-viewing (GV) in the short-wavelength infrared (SWIR) band. Experimental system demonstrators in various configurations have been built up to show the potential for different applications and to investigate specific topics. The wavelength of the pulsed illumination laser is 1.57 mu m and lies in the invisible, retina-safe region allowing much higher pulse energies than for wavelengths in the visible or near-infrared band concerning eye safety. All systems built up, consist of gated Intevac LIVAR((R)) cameras based on EBCCD/EBCMOS detectors sensitive in the SWIR band. This review comprises military and civilian applications in maritime and land domain-in particular vision enhancement in bad visibility, long-range applications, silhouette imaging, 3-D imaging by sliding gates and slope method, bistatic GV imaging, and looking through windows. In addition, theoretical studies that were conducted-e.g., estimating 3-D accuracy or modeling range performance-are presented. Finally, an outlook for future work in the area of SWIR laser GV at Fraunhofer IOSB is given. (C) 2016 Society of Photo-Optical Instrumentation Engineers (SPIE).
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