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Proceedings Paper

HgCdTe-based APD focal plane array for 2D and 3D active imaging: first results on a 320 x 256 with 30 µm pitch demonstrator
Author(s): Eric de Borniol; Fabrice Guellec; Johan Rothman; André Perez; Jean-Paul Zanatta; Michael Tchagaspanian; Pierre Castelein; Gérard Destéfanis; Jean-Christophe Peyrard; Frédéric Pistone
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Paper Abstract

CEA-Leti has developed a new 320x256 hybrid focal plane array (FPA) for flash LADAR imaging. The detector array consists of 30μm pixel pitch MWIR HgCdTe avalanche photodiodes operating at 80K and the readout integrated circuit (ROIC) is fabricated on a standard 0.18μm CMOS process. The custom ROIC can operate as a passive thermal imager or a flash LADAR imager. In this second mode, each pixel will provide the time of flight measurement (3D) and the returned intensity (2D) of one laser pulse. For the first laboratory trials the e-APD photodiode array performances were measured in passive mode and the same FPA was then tested in one shot LADAR mode. This paper describes the readout IC pixel architecture and reports the first electro-optical test results in both passive and active modes. This new prototype takes advantage of the latest developments of the partnership between Sofradir and CEA-Leti.

Paper Details

Date Published: 3 May 2010
PDF: 9 pages
Proc. SPIE 7660, Infrared Technology and Applications XXXVI, 76603D (3 May 2010); doi: 10.1117/12.850689
Show Author Affiliations
Eric de Borniol, CEA Leti - MINATEC (France)
Fabrice Guellec, CEA Leti - MINATEC (France)
Johan Rothman, CEA Leti - MINATEC (France)
André Perez, CEA Leti - MINATEC (France)
Jean-Paul Zanatta, CEA Leti - MINATEC (France)
Michael Tchagaspanian, CEA Leti - MINATEC (France)
Pierre Castelein, CEA Leti - MINATEC (France)
Gérard Destéfanis, CEA Leti - MINATEC (France)
Jean-Christophe Peyrard, DGA CELAR/MC (France)
Frédéric Pistone, Sofradir (United States)

Published in SPIE Proceedings Vol. 7660:
Infrared Technology and Applications XXXVI
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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