We report a gated-mode single-photon detector sensitive to 1550 nm radiation using a thermoelectrically cooled InGaAs avalanche photodiode. At the operation temperature of 238 K, we have obtained a quantum efficiency of 24.3% with a dark-count probability per gate of 9.4×10 -5 .
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Yoshizawa et al. (2001) studied this question.
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