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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 5 — Mar. 1, 2013
  • pp: 606–608

Gaussian pulse gated InGaAs/InP avalanche photodiode for single photon detection

Yixin Zhang, Xuping Zhang, and Shun Wang  »View Author Affiliations


Optics Letters, Vol. 38, Issue 5, pp. 606-608 (2013)
http://dx.doi.org/10.1364/OL.38.000606


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Abstract

The capacitive response noise has been problematic for high-speed single photon detection based on gated InGaAs/InP avalanche photodiodes. Traditionally, the noise must be suppressed by complex electronic circuit if low afterpulse probability is desired. In this Letter, we propose a compact and flexible method for noise cancellation, which gates the photodiode with a Gaussian pulse. Because of the differential effect of junction capacitor, the shape of the capacitive response output in our method is the first-order derivative of the Gaussian function that can be matched by the rising edge of a delayed and attenuated version of the gating pulse itself. With matching signal, the avalanche pulse is raised onto a flat platform that can be easily discriminated from the background. For 1550 nm optical signal, the detection efficiency could reach 10.2% with 9.7×106 per gate dark count probability and 3.4% afterpulse probability at 80 MHz gating frequency. Experimental results have shown that the proposed method can decrease the afterpulse probability sharply while maintaining the detection efficiency and dark count performance.

© 2013 Optical Society of America

OCIS Codes
(230.5170) Optical devices : Photodiodes
(270.5570) Quantum optics : Quantum detectors
(040.1345) Detectors : Avalanche photodiodes (APDs)

ToC Category:
Quantum Optics

History
Original Manuscript: November 2, 2012
Revised Manuscript: January 17, 2013
Manuscript Accepted: January 18, 2013
Published: February 19, 2013

Citation
Yixin Zhang, Xuping Zhang, and Shun Wang, "Gaussian pulse gated InGaAs/InP avalanche photodiode for single photon detection," Opt. Lett. 38, 606-608 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-5-606


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