Journal
PHYSICAL REVIEW LETTERS
Volume 118, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.118.023601
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Funding
- European Union [665148]
- Marie Curie Intra-European Fellowship [301032]
- PhoQuS@UW project within the European Community Seventh Framework Programme [316244]
- National Science Centre of Poland [2014/15/D/ST2/02385]
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Frequency conversion of nonclassical light enables robust encoding of quantum information based upon spectral multiplexing that is particularly well-suited to integrated-optics platforms. Here we present an intrinsically deterministic linear-optics approach to spectral shearing of quantum light pulses and show it preserves the wave-packet coherence and quantum nature of light. The technique is based upon an electrooptic Doppler shift to implement frequency shear of heralded single-photon wave packets by +/- 200 GHz, which can be scaled to an arbitrary shift. These results demonstrate a reconfigurable method to controlling the spectral-temporal mode structure of quantum light that could achieve unitary operation.
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