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Tunable upconversion photon detector
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DOI：10.1063/1.2969067.png)
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Abstract
En 中文
We introduce a simple approach for a tunable upconversion detector. This scheme is relevant for both single photon detection or anywhere where low light levels at telecom wavelengths need to be detected with a high degree of temporal resolution or where high count rates are desired. A system combining a periodically poled lithium niobate waveguide for the nonlinear wavelength conversion and a low jitter silicon avalanche photodiode is used in conjunction with a tunable pump source. We report more than a tenfold increase in the detectable bandwidth using this tuning scheme. (c) 2008 American Institute of Physics.
Keywords:
QUANTUM KEY DISTRIBUTION
TELECOM WAVELENGTH
AVALANCHE-DIODES
COMMUNICATION
PERFORMANCE
RESOLUTION
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