摘要
Single-photon signals at 1.56 μ were converted into the visible region by sum-frequency generation, with synchronous pump pulses at 1.03 μ in a periodically poled lithium niobate crystal. The signal and pump sources were provided by two synchronized mode-locked fiber lasers at the operation rate of 7.88 MHz. Such a high-speed single-photon upconversion system has shown an overall detection efficiency of 10.4%. The corresponding background noise was measured to be 3.3×103 s-1. The noise-equivalent power in this scheme was 9.93×10-17 W/Hz1/2, which was the lowest compared to the other upconversion systems with similar pump and signal wavelengths.
| 源语言 | 英语 |
|---|---|
| 期刊论文编号 | 5286845 |
| 页(从-至) | 1748-1752 |
| 页数 | 5 |
| 期刊 | IEEE Journal of Selected Topics in Quantum Electronics |
| 卷 | 15 |
| 期 | 6 |
| DOI | |
| 出版状态 | 已出版 - 11月 2009 |
| 已对外发布 | 是 |
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