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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 35 — Dec. 10, 2011
  • pp: 6522–6525

Detection performance improvement of chirped amplitude modulation ladar based on Gieger-mode avalanche photoelectric detector

Zijing Zhang, Long Wu, Yu Zhang, Yuan Zhao, and Xiudong Sun  »View Author Affiliations


Applied Optics, Vol. 50, Issue 35, pp. 6522-6525 (2011)
http://dx.doi.org/10.1364/AO.50.006522


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Abstract

This paper presents an improved system structure of photon-counting chirped amplitude modulation (AM) ladar based on the Geiger-mode avalanche photoelectric detector (GmAPD). The error-pulse probability is investigated with statistical method. The research shows that most of the error pulses that are triggered by noise are distributed in the intensity troughs of the chirped AM waveform. The error-pulse probability is lowered with the sliding window and the threshold. With the average intensity of noise and signal being 0.3 count/sample and 1 count/sample, respectively, the probability of error pulses is reduced from 12% to 1.0%, and the SNR is improved by 2.2 dB in the improved system.

© 2011 Optical Society of America

OCIS Codes
(030.5260) Coherence and statistical optics : Photon counting
(040.3780) Detectors : Low light level
(320.1590) Ultrafast optics : Chirping
(040.1345) Detectors : Avalanche photodiodes (APDs)

ToC Category:
Detectors

History
Original Manuscript: November 24, 2010
Revised Manuscript: March 9, 2011
Manuscript Accepted: March 13, 2011
Published: December 8, 2011

Citation
Zijing Zhang, Long Wu, Yu Zhang, Yuan Zhao, and Xiudong Sun, "Detection performance improvement of chirped amplitude modulation ladar based on Gieger-mode avalanche photoelectric detector," Appl. Opt. 50, 6522-6525 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-35-6522

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