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Lasers for Measurements and Information Transfer

Using InP/InGaAs avalanche photodiodes for 1.3 um photon detection

A. A. Anisimov, Andrei V. Medvedev, Sergey I. Markov

Published Feb 16, 2005• 0 citations
Publisher

Abstract

InGaAs/InP avalanche photodiode in photon detection mode was researched. The automatic experimental setup was developed. The parameters of single photon detector were optimized for quantum cryptography application in temperature range -38...-57C for 1.3 μm wavelength. Quantum efficiency 16% at quantum bit error rate 10% and dark count probability 7 10-5 at -38C was achieved.

DOI
10.1117/12.610518

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InGaAs/InP avalanche photodiode in photon detection mode was researched. The automatic experimental setup was developed. The parameters of single photon detector were optimized for quantum cryptography application in temperature range -38...-57C for 1.3 μm wavelength. Quantum efficiency 16% at quantum bit error rate 10% and dark count probability 7 10-5 at -38C was achieved.
In our recent experiment, we have designed a novel single-photon detecting module for quantum key distribution using an InGaAs/InP avalanche photodiode with gate-mode quenched photo-detection. At a repetition rate of 100 kHz and the working temperature of -60°C, we obtained the detection efficiency η higher than 10% and 20% at the dark probability Pd about 1.3×10-5 and 1.6×10-5 per nanosecond, respectively. Also at 100 kHz, we got the best ratio of Pd/η as 1.7×10-3 per pulse (20 ns). And at a lower repetition such as 10 kHz, we obtained Pd/η as 8.9×10-4 per pulse.
A brief overview is given of single photon detector performance requirements for quantum cryptography applications. The analysis is made with respect to restrictions necessary to secure the quantum key distribution channel. InGaAs/InP avalanche photodiode performance is analysed for single photon counting at 1550 nm. Quantum efficiency, dark current and afterpulsing probability (for times up to 100μs after an initial avalanche) are studied in a wider temperature range than previously reported (0deg; C to –80deg;C). We show that photon counting is a bottle-neck in current quantum key distribution systems and provides the source for future performance improvement.
Using InGaAs/InP avalanche photodiodes as sensors and coaxial cables as reflection lines to reject spike signals, we have firstly employed the ``timing filtering'' gates to pick out avalanche signals and have realized the single photon detection at 1550 nm in the temperature range of thermoelectric cooling. A ratio of the dark count rate to the detection efficiency was obtained to be 9 × 10 −5 at 223 K. When the detector is applied to a practical quantum key distribution system, the transmission distance can reach 89.5 km and the repetition rate can reach 0.33 MHz.
Abstract In order to realize long‐distance quantum cryptography based on standard optical fiber network, we have developed a single‐photon detector at 1550 nm using InGaAs/InP avalanche photodiodes (APDs). To reduce the dark count probability, APDs were cooled and operated with a Gated Passive Quenching Circuit. A quantum efficiency of 13.7% was obtained at −55 °C while keeping the dark count probability per gate (2 ns) as low as 2.4 × 10−5. In this paper we will discuss the performance of the developed single‐photon detector in view of application to quantum cryptography. © 2003 Wiley Periodicals, Inc. Electron Comm Jpn Pt 2, 86(5): 10–15, 2003; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/ecjb.10115
The application of quantum key distribution (QKD) has raised particular demands for single-photon detectors. One of the most promising candidates at the low-loss optical fibre communications windows is the planar geometry InGaAs/InP single-photon avalanche diode. These detectors have been modelled, fabricated and characterised at 1.55 µm wavelength. Their performance in terms of single-photon detection efficiency, dark count rate, timing jitter and afterpulsing behaviour are reported and compared with the best commercially available, linear multiplication avalanche photodiodes operated in Geiger-mode. Their use in the application of QKD is discussed.