13 August 1997 Miniaturized digital high-angular-resolution laser irradiation detectors (HARLID) for laser warning receivers (LWR)
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A miniaturized digital 1-band HARLID module using linear silicon detector arrays has been developed. These HARLID modules, which fit inside standard TO-8 packages, were designed to locate angularly a pulsed laser source within plus or minus 1 degree over a 90 degree field of view either in azimuth or elevation. The principle of operation of this new patented-module is based on the use of a Gray code ask to encode the angle of arrival of a laser beam. The electro- optical (E-O) performance of this new module has been evaluated in the laboratory. A laser warning receiver (LWR) demonstrator integrating two of these modules has been built and its E-O performance measured in the laboratory and in a field environment aboard a tank. A new 2-band HARLID module now under development will include a sandwich of Si and InGaAs detector arrays and will extend the spectral band of the HARLID from 0.4 to 1.7 micron while increasing significantly its responsivity at 1.064 micrometer. A study of its technical characteristics and limitations has been recently completed and future HARLID technology development plan established.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andre Cantin, Andre Cantin, Jacques Dubois, Jacques Dubois, Paul P. Webb, Paul P. Webb, Daniel Pomerleau, Daniel Pomerleau, Michael P. Altman, Michael P. Altman, } "Miniaturized digital high-angular-resolution laser irradiation detectors (HARLID) for laser warning receivers (LWR)", Proc. SPIE 3061, Infrared Technology and Applications XXIII, (13 August 1997); doi: 10.1117/12.280396; https://doi.org/10.1117/12.280396

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