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Proceedings Paper • Open Access

Evaluation of InGaAS array detector suitability to space environment
Author(s): L. Tauziede; K. Beulé; M. Boutillier; F. Bernard; J.-L. Reverchon; A. Buffaz

Paper Abstract

InGaAs material has a natural cutoff wavelength of 1.65µm so it is naturally suitable for detection in Short Wavelength InfraRed (SWIR) spectral range. Regarding Earth Observation Spacecraft missions this spectral range can be used for the CO2 concentration measurements in the atmosphere. CNES (French Space agency) is studying a new mission, Microcarb with a spectral band centered on 1.6µm wavelength. InGaAs detector looks attractive for space application because its low dark current allows high temperature operation, reducing by the way the needed instrument resources. The Alcatel Thales III-VLab group has developed InGaAs arrays technology (320x256 & 640x512) that has been studied by CNES, using internal facilities. Performance tests and technological evaluation were performed on a 320x256 pixels array with a pitch of 30µm. The aim of this evaluation was to assess this new technology suitability for space applications. The carried out test plan includes proton radiations with Random Telegraph Signal (RTS) study, operating lifetest and evolution of performances as a function of the operating temperature.

Paper Details

Date Published: 20 November 2017
PDF: 10 pages
Proc. SPIE 10564, International Conference on Space Optics — ICSO 2012, 105640O (20 November 2017); doi: 10.1117/12.2309217
Show Author Affiliations
L. Tauziede, Ctr. National d'Études Spatiales (France)
K. Beulé, Ctr. National d'Études Spatiales (France)
M. Boutillier, Ctr. National d'Études Spatiales (France)
F. Bernard, Ctr. National d'Études Spatiales (France)
J.-L. Reverchon, III-V Lab. (France)
A. Buffaz, Pleiades Technologies (France)

Published in SPIE Proceedings Vol. 10564:
International Conference on Space Optics — ICSO 2012
Bruno Cugny; Errico Armandillo; Nikos Karafolas, Editor(s)

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