Ultrashort dead time of photon-counting InGaAs avalanche photodiodes

Dixon, A. R., Dynes, J. F., Yuan, Z. L., Sharpe, A. W., Bennett, Anthony ORCID: https://orcid.org/0000-0002-5386-3710 and Shields, A. J. 2009. Ultrashort dead time of photon-counting InGaAs avalanche photodiodes. Applied Physics Letters 94 (23) , 231113. 10.1063/1.3151864

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Abstract

We report a 1.036 GHz gated Geiger mode InGaAs avalanche photodiode with a detection dead time of just 1.93 ns. This is demonstrated by full recovery of the detection efficiency two gate cycles after a detection event, as well as a measured maximum detection rate of 497 MHz. As an application, we measure the second order correlation function g(2) of the emission from a diode laser with a single detector that works reliably at high speed owing to the extremely short dead time of the detector. The device is ideal for high bit rate fiber wavelength quantum key distribution and photonic quantum computing.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Engineering
Publisher:	American Institute of Physics
ISSN:	0003-6951
Date of First Compliant Deposit:	23 November 2017
Date of Acceptance:	15 May 2009
Last Modified:	12 May 2023 10:24
URI:	https://orca.cardiff.ac.uk/id/eprint/106829

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