1. Spectral compression of single-photon-level laser pulse
- Author
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Li, Yuanhua, Xiang, Tong, Nie, Yiyou, Sang, Minghuang, and Chen, Xianfeng
- Subjects
Physics - Optics - Abstract
We experimentally demonstrate that the bandwidth of single photons laser pulse is compressed by a factor of 58 in a periodically poled lithium niobate (PPLN) waveguide chip. A chirped single photons laser pulse and an oppositely chirped classical laser pulse are employed to produce a narrowband single photon pulse with new frequency through sum-frequency generation. In our experiment, the frequency and bandwidth of single photons at 1550 nm are simultaneously converted. Our results mark a critical step towards the realization of coherent photonic interface between quantum communication at 1550 nm and quantum memory in the near-visible window., Comment: 9 pages, 5 figures
- Published
- 2016