Abstract
In the frame of the development of infrared sensors for space applications, Sofradir and the European Space Agency (ESA) have undertaken detector breadboarding activities dedicated for short wave band infrared (SWIR) hyperspectral imagers to be implemented on future earth observation satellites. Based on previous breadboarding activities, a development of a 1000 X 256 SWIR focal plane array has been launched. This focal plane array has a format of 1000 X 256 with a pitch of 30 micrometers . It operates in the 1 to 2.5 micrometers waveband at an operating temperature compatible with passive cooling largely used in satellites. The retina of the detector is based on a photovoltaic HgCdTe array hybridized to a full custom silicon CMOS readout circuit. The readout circuit is versatile so that it answers several system requirements for hyperspectral applications. In this paper, major trade-offs regarding detector design and performances are presented with a particular emphasis on the capability of the retina in terms of noise and dynamic range. Then, the SWIR focal plane array performances are described including different applications requirements needs analysis.
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