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Proceedings Paper

Two-dimensional active pixel InGaAs focal plane arrays
Author(s): Quiesup Kim; Michael J. Lange; Christopher J. Wrigley; Thomas J. Cunningham; Bedabrata Pain
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Paper Abstract

Switching and amplifying characteristics of a newly developed 2D InGaAs Active Pixel Imager Array are presented. The sensor array is fabricated from InGaAs material epitaxially deposited on an InP substrate. It consists of an InGaAs photodiode connected to InP depletion-mode junction field effect transistors for low leakage, low power and fast control of circuit signal amplifying, buffering, selection and reset. This monolithically integrated active pixel sensor configuration eliminates the need for hybridization with a silicon multiplexer, and in addition, allows the sensor to be front illuminated, making it sensitive to visible as well as near IR signal radiation. Adapting the existing 1.55 micrometers fiber optical communication technology, this integration will be an ideal system of optoelectronic integration for dual band applications near room temperature, for use in atmospheric gas sensing in space and target identification on earth. In this paper, 4 by 4 test arrays will be described. The effectiveness of switching and amplifying circuits will be discussed in terms of circuit in preparation for 2D InGaAs active pixel sensor arrays for applications in multifunctional, transportable shipboard surveillance, night vision and emission spectroscopy.

Paper Details

Date Published: 15 May 2001
PDF: 7 pages
Proc. SPIE 4277, Integrated Optics Devices V, (15 May 2001); doi: 10.1117/12.426798
Show Author Affiliations
Quiesup Kim, Jet Propulsion Lab. (United States)
Michael J. Lange, Sensors Unlimited, Inc. (United States)
Christopher J. Wrigley, Jet Propulsion Lab. (United States)
Thomas J. Cunningham, Jet Propulsion Lab. (United States)
Bedabrata Pain, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 4277:
Integrated Optics Devices V
Giancarlo C. Righini; Seppo Honkanen, Editor(s)

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