Title:
TEMPERATURE COMPENSATION FOR QKD SYSTEMS
Document Type and Number:
WIPO Patent Application WO2006004883
Kind Code:
A3
Abstract:
Systems and methods for compensating a QKD system (200) for variations in temperature (T) are disclosed. One of the methods includes identifying an optimum detector gating signal timing (t) as a function of temperature for a single-photon detector (SPD) unit (216) in one of the QKD stations. The detector gating signal (S3) timing versus temperature information is stored in a look-up table in a memory unit (252). The QKD system's temperature is monitored during operation using a temperature sensor (TS). The timing of the detector gating signal is adjusted based on the operating temperature and the corresponding timing value adjustment (?) in the look-up table. The result is a compensated detector gating timing signal (S3') provided to the SPD that yields an optimum number of photon counts (N) even as the temperature of the QKD station (Bob) varies.
Inventors:
LAGASSE MICHAEL J (US)
Application Number:
PCT/US2005/023192
Publication Date:
November 23, 2006
Filing Date:
June 28, 2005
Export Citation:
Assignee:
MAGIQ TECHNOLOGIES INC (US)
LAGASSE MICHAEL J (US)
LAGASSE MICHAEL J (US)
International Classes:
H01J40/14; H01J7/24
Foreign References:
| US6678379B1 | 2004-01-13 |
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