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Proceedings Paper

Low noise, free running, high rate photon counting for space communication and ranging
Author(s): Wei Lu; Michael A. Krainak; Guangning Yang; Xiaoli Sun; Scott Merritt
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Paper Abstract

communication and ranging. NASA GSFC is testing the performance of two types of novel photon-counting detectors 1) a 2x8 mercury cadmium telluride (HgCdTe) avalanche array made by DRS Inc., and a 2) a commercial 2880-element silicon avalanche photodiode (APD) array. We successfully measured real-time communication performance using both the 2 detected-photon threshold and logic AND-gate coincidence methods. Use of these methods allows mitigation of dark count, after-pulsing and background noise effects without using other method of Time Gating The HgCdTe APD array routinely demonstrated very high photon detection efficiencies (>50%) at near infrared wavelength. The commercial silicon APD array exhibited a fast output with rise times of 300 ps and pulse widths of 600 ps. On-chip individually filtered signals from the entire array were multiplexed onto a single fast output. NASA GSFC has tested both detectors for their potential application for space communications and ranging. We developed and compare their space communication and ranging performances using both the 2 detected photon threshold and coincidence methods.

Paper Details

Date Published: 5 May 2016
PDF: 11 pages
Proc. SPIE 9858, Advanced Photon Counting Techniques X, 98580T (5 May 2016); doi: 10.1117/12.2225925
Show Author Affiliations
Wei Lu, NASA Goddard Space Flight Ctr. (United States)
Michael A. Krainak, NASA Goddard Space Flight Ctr. (United States)
Guangning Yang, NASA Goddard Space Flight Ctr. (United States)
Xiaoli Sun, NASA Goddard Space Flight Ctr. (United States)
Scott Merritt, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 9858:
Advanced Photon Counting Techniques X
Mark A. Itzler; Joe C. Campbell, Editor(s)

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