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Proceedings Paper

Characterization of InGaAs avalanche photodiode arrays with varying geometries for free-space optical communication
Author(s): Mike S. Ferraro; Harris R. Burris; Rita Mahon; William S. Rabinovich; Wade T. Freeman; James L. Murphy; Peter G. Goetz; Christopher I. Moore; Linda M. Thomas; William R. Clark; William D. Waters; Kenneth Vaccaro; Brian D. Krejca
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Paper Abstract

Photodiode arrays are instrumental in providing pointing and tracking information for free space optical communication systems. Recent advances in the fabrication and development of low noise, high bandwidth avalanche photodiode (APD) arrays have enabled these devices to be used not only as position sensitive detectors (PSD) for tracking but also as communications receivers. In a collaborative effort with Optogration, Inc., the U.S. Naval Research Laboratory has developed avalanche photodiode arrays with three different geometries: a 3x3 square pixel array, a centered hexagonal pixel array, and a 5 pixel concentric array configuration with a center pixel and four periphery pixels. The characterization and performance of each array geometry will be described along with associated front-end and digital electronics. Design tradeoffs for maximizing the performance of a given array geometry will also be discussed.

Paper Details

Date Published: 5 May 2012
PDF: 10 pages
Proc. SPIE 8380, Atmospheric Propagation IX, 83800A (5 May 2012); doi: 10.1117/12.919924
Show Author Affiliations
Mike S. Ferraro, U.S. Naval Research Lab. (United States)
Harris R. Burris, U.S. Naval Research Lab. (United States)
Rita Mahon, U.S. Naval Research Lab. (United States)
William S. Rabinovich, U.S. Naval Research Lab. (United States)
Wade T. Freeman, Smart Logic, Inc. (United States)
James L. Murphy, U.S. Naval Research Lab. (United States)
Peter G. Goetz, U.S. Naval Research Lab. (United States)
Christopher I. Moore, U.S. Naval Research Lab. (United States)
Linda M. Thomas, U.S. Naval Research Lab. (United States)
William R. Clark, Optogration, Inc. (United States)
William D. Waters, Optogration, Inc. (United States)
Kenneth Vaccaro, Optogration, Inc. (United States)
Brian D. Krejca, Optogration, Inc. (United States)

Published in SPIE Proceedings Vol. 8380:
Atmospheric Propagation IX
Linda M. Wasiczko Thomas; Earl J. Spillar, Editor(s)

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