| Author(s): |
Stefania Castelletto; Ivo P. Degiovanni; V Schettini; Alan L. Migdall; |
| Title: |
Reduced Deadtime and Higher Rate Photon-Counting Detection Using a Multiplexed Detector Array |
| Published: |
January 20, 2007 |
| Abstract: |
We present a scheme for a photon-counting detection system that can be operated at incident photon rates higher than otherwise possible by suppressing the effects of detector deadtime. The method uses an array of N detectors and a 1-by-N optical switch with a control circuit to direct input light to live detectors. Our calculations and models highlight the advantages of the technique. In particular, using this scheme, a group of N detectors provides an improvement in operation rate that can exceed the improvement that would be obtained by a single detector with deadtime reduced by 1/N, even if it were feasible to produce a single detector with such a large improvement in deadtime. We model the system for CW and pulsed light sources, both of which are important for quantum metrology and quantum key distribution applications. |
| Citation: |
Journal of Modern Optics |
| Volume: |
54 |
| Issue: |
2-3 |
| Pages: |
pp. 337 - 352 |
| Keywords: |
deadtime;detection;detector;detector array;photon;photon-counting detector;quantum computation;quantum information |
| Research Areas: |
Quantum Optics, Quantum Information, Single Photon Detectors, Quantum Devices, Single Photon Sources, Correlated Photon Radiometry, Quantum Information Technology |
