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Synchronized Fiber Lasers for Efficient Coincidence Single-Photon Frequency Upconversion

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5 Author(s)
Kun Huang ; State Key Lab. of Precision Spectrosc., East China Normal Univ., Shanghai, China ; Xiaorong Gu ; Pan, Haifeng ; Wu, E.
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We experimentally demonstrate a compact synchronized fiber laser system that enables fast and efficient coincidence single-photon frequency upconversion detection. Robust synchronization between the pump and signal pulses was achieved with a long-term stability. Moreover, the synchronized pulses were wellmatching in both of the time and spectrum domains. As a result, a coincidence single-photon frequency upconversion was realized with a conversion efficiency of 91.8% and low background counts around 2.8 × 103 s-1.

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:18 ,  Issue: 2 )