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Proceedings Paper

Low-capacitance InGaAs detectors for high-speed, wide field-of-view sensing applications
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Paper Abstract

Attollo has developed large area low capacitance InGaAs detectors to meet the needs of LiDAR systems following the roadmap of technology development at the near Infrared (NIR) wavelengths of 850/905/940 nm with the eventual transition to eye-safe wavelengths near 1550 nm. Attollo InGaAs offers large photodetector areas while still meeting the bandwidth limitations of the amplified detection system. Large area photodetectors enable a large system Field of View (FOV) with a simpler and larger diameter lens and also provide lower input-referred noise from optimized transimpedance amplifier systems. Attollo will present results on InGaAs detectors achieving capacitance densities 3x lower than state-of-the-art with 16 pF/mm2. Attollo will present LiDAR receiver modeling data utilizing these detectors and will quantify the advantages of low capacitance in LIDAR applications as it relates to system bandwidth and amplifier input referred noise performance of the system.

Paper Details

Date Published: 7 May 2019
PDF: 14 pages
Proc. SPIE 11002, Infrared Technology and Applications XLV, 1100214 (7 May 2019); doi: 10.1117/12.2521090
Show Author Affiliations
Jon Geske, Attollo Engineering, LLC (United States)
Andrew Hood, Attollo Engineering, LLC (United States)
Jeremy Thomas, Attollo Engineering, LLC (United States)
Michael MacDougal, Attollo Engineering, LLC (United States)

Published in SPIE Proceedings Vol. 11002:
Infrared Technology and Applications XLV
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson, Editor(s)

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