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Author: alessandro restelli
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1. A Green Laser Pointer Hazard
Technical Note (NIST TN)
Jemellie Galang, Alessandro Restelli, Edward Walter Hagley, Charles W Clark
An inexpensive green laser pointer was found to emit 20 mW of infrared radiation during normal use. This is potentially a serious hazard that would not be noticed by most users of such pointers. We find that the problem derives from an unsafe desig ...
2. Programmable Instrumentation & GHz Signaling for Quantum Communication Systems
Alan Mink, Joshua C Bienfang, Robert J. Carpenter, Lijun Ma, Barry J. Hershman, Alessandro Restelli, Xiao Tang
We discussed custom instrumentation for high-speed single photon metrology. We focus on the difficulty of GHz data sampling and provide some techniques on how to accomplish it. We also discuss the benefits of field programmable gate arrays as the bas ...
3. Quantum key distribution at GHz transmission rates
Alessandro Restelli, Joshua C Bienfang, Alan Mink, Charles W Clark
Quantum key distribution (QKD) channels are typically realized by transmitting and detecting single photons, and therefore suffer from dramatic reductions in throughput due to both channel loss and noise. These shortcomings can be mitigated by applyi ...
4. Single-photon detection efficiency up to 50% at 1310 nm with an InGaAs/InP avalanche diode gated at
Alessandro Restelli, Joshua C Bienfang, Alan L Migdall
We describe a gated Geiger-mode single-photon avalanche diode (SPAD) detection system in which both
gating and avalanche discrimination are implemented by coherent addition of discrete harmonics of
the fundamental gate frequency. With amplitude a ...