Integrated optomechanical single-photon frequency shifter

Linran Fan, Chang Ling Zou, Menno Poot, Risheng Cheng, Xiang Guo, Xu Han, Hong X. Tang

Research output: Contribution to journalLetterpeer-review

99 Scopus citations


The ability to manipulate single photons is of critical importance for fundamental quantum optics studies and practical implementations of quantum communications. While extraordinary progresses have been made in controlling spatial, temporal, spin and orbit angular momentum degrees of freedom, frequency-domain control of single photons so far relies on nonlinear optical effects, which have faced obstacles such as noise photons, narrow bandwidth and demanding optical filtering. Here, we demonstrate the first integrated optomechanical single-photon frequency shifter with near-unity efficiency. A frequency shift up to 150 €...GHz at telecom wavelength is realized without measurable added noise and the preservation of quantum coherence is verified through quantum interference between twin photons of different colours. This single-photon frequency shifter will be invaluable for increasing the channel capacity of quantum communications and compensating frequency mismatch between quantum systems, paving the road towards a hybrid quantum network.

Original languageEnglish
Pages (from-to)766-770
Number of pages5
JournalNature Photonics
Issue number12
StatePublished - 29 Nov 2016
Externally publishedYes


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