Spectral compression of single photons

Lavoie, J., Donohue, J. M., Wright, L. G., Fedrizzi, A. and Resch, K. J. (2013) Spectral compression of single photons. Nature Photonics, 7 5: 363-366. doi:10.1038/NPHOTON.2013.47

Author Lavoie, J.
Donohue, J. M.
Wright, L. G.
Fedrizzi, A.
Resch, K. J.
Title Spectral compression of single photons
Journal name Nature Photonics   Check publisher's open access policy
ISSN 1749-4885
Publication date 2013-05
Year available 2013
Sub-type Article (original research)
DOI 10.1038/NPHOTON.2013.47
Volume 7
Issue 5
Start page 363
End page 366
Total pages 4
Place of publication London, United Kingdom
Publisher Nature Publishing Group
Collection year 2014
Language eng
Abstract Photons are critical to quantum technologies because they can be used for virtually all quantum information tasks, for example, in quantum metrology, as the information carrier in photonic quantum computation, as a mediator in hybrid systems, and to establish long-distance networks. The physical characteristics of photons in these applications differ drastically; spectral bandwidths span 12 orders of magnitude from 50 THz (ref. 6) for quantum-optical coherence tomography to 50 Hz for certain quantum memories. Combining these technologies requires coherent interfaces that reversibly map centre frequencies and bandwidths of photons to avoid excessive loss. Here, we demonstrate bandwidth compression of single photons by a factor of 40 as well as tunability over a range 70 times that bandwidth via sum-frequency generation with chirped laser pulses. This constitutes a time-to-frequency interface for light capable of converting time-bin to colour entanglement, and enables ultrafast timing measurements. It is a step towards arbitrary waveform generation for single and entangled photons.
Keyword Up-conversion
Picosecond pulses
Chirped pulses
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Centre for Quantum Computer Technology Publications
Official 2014 Collection
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Citation counts: TR Web of Science Citation Count  Cited 23 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 28 times in Scopus Article | Citations
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