Laser diode arrays for naval reconnaissance

John H. Holloway Jr.; Frank J. Crosby; Danny A. Petee; Harold R. Suiter; Ned H. Witherspoon

doi:10.1117/12.500656

11 September 2003 Laser diode arrays for naval reconnaissance

John H. Holloway Jr., Frank J. Crosby, Danny A. Petee, Harold R. Suiter, Ned H. Witherspoon

Proceedings Volume 5089, Detection and Remediation Technologies for Mines and Minelike Targets VIII; (2003) https://doi.org/10.1117/12.500656
Event: AeroSense 2003, 2003, Orlando, Florida, United States

Abstract

The Airborne Littoral Reconnaissance Technologies (ALRT) Project has demonstrated a nighttime operational minefield detection capability using commercial off-the-shelf high-power Laser Diode Arrays (LDAs). Historically, optical aerial detection of minefields has primarily been limited to daytime operations but LDAs promise compact and efficient lighting to allow for enhanced reconnaissance operations for future mine detection systems. When combined with high-resolution intensified imaging systems, LDAs can illuminate otherwise unseen areas. Future wavelength options will open the way for active multispectral imaging with LDAs. The Coastal Systems Station working for the Office of Naval Research on the ALRT project has designed, developed, integrated, and tested both prototype and commercial arrays from a Cessna airborne platform. Detailed test results show the ability to detect several targets of interest in a variety of background conditions. Initial testing of the prototype arrays, reported on last year, was completed and further investigations of the commercial versions were performed. Polarization-state detection studies were performed, and advantageous properties of the source-target-sensor geometry noted. Current project plans are to expand the field-of-view coverage for Naval exercises in the summer of 2003. This paper describes the test collection, data library products, array information, on-going test analysis results, and future planned testing of the LDAs.

Citation Download Citation

John H. Holloway Jr., Frank J. Crosby, Danny A. Petee, Harold R. Suiter, and Ned H. Witherspoon "Laser diode arrays for naval reconnaissance", Proc. SPIE 5089, Detection and Remediation Technologies for Mines and Minelike Targets VIII, (11 September 2003); https://doi.org/10.1117/12.500656

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KEYWORDS

Cameras

Semiconductor lasers

Polarization

Reconnaissance

Unmanned aerial vehicles

Fiber optic illuminators

Prototyping

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