Streak camera imaging of single photons at telecom wavelength

Streak cameras are powerful tools for temporal characterization of ultrafast light pulses, even at the single-photon level. However, the low signal-to-noise ratio in the infrared range prevents measurements on weak light sources in the telecom regime. We present an approach to circumvent this proble...

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Bibliographic Details
Published in:Applied physics letters 2018-01, Vol.112 (3)
Main Authors: Allgaier, Markus, Ansari, Vahid, Eigner, Christof, Quiring, Viktor, Ricken, Raimund, Donohue, John Matthew, Czerniuk, Thomas, Aßmann, Marc, Bayer, Manfred, Brecht, Benjamin, Silberhorn, Christine
Format: Article
Language:English
Subjects:
Applied physics
Cameras
Light sources
Lithium niobates
Phase matching
Photons
Rangefinding
Streak cameras
Telecommunications
Upconversion
Waveguides
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Summary:Streak cameras are powerful tools for temporal characterization of ultrafast light pulses, even at the single-photon level. However, the low signal-to-noise ratio in the infrared range prevents measurements on weak light sources in the telecom regime. We present an approach to circumvent this problem, utilizing an up-conversion process in periodically poled waveguides in Lithium Niobate. We convert single photons from a parametric down-conversion source in order to reach the point of maximum detection efficiency of commercially available streak cameras. We explore phase-matching configurations to apply the up-conversion scheme in real-world applications.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.5004110