Commercial and industrial applications of indium gallium arsenide near-infrared focal plane arrays

Marshall J. Cohen; Martin H. Ettenberg; Michael J. Lange; Gregory H. Olsen

doi:10.1117/12.354547

26 July 1999 Commercial and industrial applications of indium gallium arsenide near-infrared focal plane arrays

Marshall J. Cohen, Martin H. Ettenberg, Michael J. Lange, Gregory H. Olsen

Proceedings Volume 3698, Infrared Technology and Applications XXV; (1999) https://doi.org/10.1117/12.354547
Event: AeroSense '99, 1999, Orlando, FL, United States

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.

Citation Download Citation

Marshall J. Cohen, Martin H. Ettenberg, Michael J. Lange, and Gregory H. Olsen "Commercial and industrial applications of indium gallium arsenide near-infrared focal plane arrays", Proc. SPIE 3698, Infrared Technology and Applications XXV, (26 July 1999); https://doi.org/10.1117/12.354547

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