New InGaAs SWIR imaging solutions from III-VLab
2011
SWIR image sensors based on p-i-n photodiodes arrays present a tremendous interest in applications often requiring a
high intra-scene dynamics. This paper describes a single-chip InGaAs SWIR camera with more than 120 dB intrinsic
operational dynamic range with an innovative CMOS ROIC technology initially developed by New Imaging
Technologies for visible CMOS camera chip. A simplified camera with on chip fixed pattern noise correction is
presented. We also present the next generation of focal plane arrays (FPA) based on a VGA format of 640 x 512 pixels
with a pitch of 15 μm. These FPAs are associated to a logarithmic wide dynamic range ROIC. We give the electro-optics
performances and particularly the visible extension capabilities. This InGaAs VGA logarithmic single-chip camera
allows a high resolution SWIR camera with minimized system complexity and low power consumption.
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