We report room temperature operation of telecom wavelength single-photon detectors for
high bit rate quantum key distribution (QKD). Room temperature operation is achieved using …

We have demonstrated quantum key distribution (QKD) over 100 km using single-photon
detectors based on InGaAs/InP avalanche photodiodes (APDs). We implemented the …

We report a telecom-band single-photon detector for gigahertz clocked quantum key
distribution systems. The single-photon detector is based on a sinusoidally gated …

Implementation of high-speed quantum key distribution (QKD) has become one of the major
focuses in the field, which produces a high key-generation rate for applications. To achieve …

We present and analyze a gated single photon avalanche detector using a sine gating
scheme with a simple but effective low-pass filtering technique for fast low-noise single …

We demonstrate fiber-optic quantum key distribution (QKD) at 1550 nm using single-photon
detectors operating at 5 MHz. Such high speed single-photon detectors are essential to the …

We report a demonstration of quantum key distribution (QKD) at gigahertz clock rates with
InGaAs avalanche photodiodes (APDs) operating in a self-differencing mode. Such a mode …

We present a free-running single photon detector for telecom wavelengths based on a
negative feedback avalanche photodiode (NFAD). A dark count rate as low as 1 cps was …

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 …

We implement an InGaAs/InP single-photon avalanche diode (SPAD) for single-photon
detection with the fastest gating frequency reported so far, of 2.23 GHz, which approaches …