Review on short-wavelength infrared laser gated-viewing at Fraunhofer IOSB

Benjamin Göhler; Peter Lutzmann

doi:10.1117/1.OE.56.3.031203

27 September 2016 Review on short-wavelength infrared laser gated-viewing at Fraunhofer IOSB

Benjamin Göhler, Peter Lutzmann

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Optical Engineering, Vol. 56, Issue 3, 031203 (September 2016). https://doi.org/10.1117/1.OE.56.3.031203

Abstract

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 μm 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® 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.

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Benjamin Göhler and Peter Lutzmann "Review on short-wavelength infrared laser gated-viewing at Fraunhofer IOSB," Optical Engineering 56(3), 031203 (27 September 2016). https://doi.org/10.1117/1.OE.56.3.031203

Published: 27 September 2016

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