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Proceedings Paper

Commercial and industrial applications of indium gallium arsenide near-infrared focal plane arrays
Author(s): Marshall J. Cohen; Martin H. Ettenberg; Michael J. Lange; Gregory H. Olsen
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Paper Abstract

Sensors Unlimited, Inc. has developed focal pane arrays (FPAs) fabricated with indium gallium arsenide (InGaAs) photodiode arrays and silicon CMOS readout integrated circuits. These devices are readily available in a wide variety of formats suitable for commercial and industrial applications. InGaAs FPAs are sensitive to the near IR, operate without cooling, and come in both 2D formats and 1D formats. 1D InGaAs FPAs are used as both spectroscopic detectors and line scan imagers. Key applications include miniature spectrometers used for wavelength control and monitoring of WDM laser sources, octane determination, the sorting o plastics during recycling, and web process control. 2D InGaAs FPAs find use in applications such as laser beam profiling, visualization of 'clear' ice on aircraft and roadways, and industrial thermal imaging.

Paper Details

Date Published: 26 July 1999
PDF: 9 pages
Proc. SPIE 3698, Infrared Technology and Applications XXV, (26 July 1999); doi: 10.1117/12.354547
Show Author Affiliations
Marshall J. Cohen, Sensors Unlimited, Inc. (United States)
Martin H. Ettenberg, Sensors Unlimited, Inc. (United States)
Michael J. Lange, Sensors Unlimited, Inc. (United States)
Gregory H. Olsen, Sensors Unlimited, Inc. (United States)


Published in SPIE Proceedings Vol. 3698:
Infrared Technology and Applications XXV
Bjorn F. Andresen; Marija Strojnik, Editor(s)

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