Integrated autocorrelator based on superconducting nanowires
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We demonstrate an integrated autocorrelator based on two superconducting single-photon detectors patterned on top of a GaAs ridge waveguide. This device enables the on-chip measurement of the second-order intensity correlation function g((2))(tau). A polarization-independent device quantum efficiency in the 1% range is reported, with a timing jitter of 88 ps at 1300 nm. g((2))(tau) measurements of continuous-wave and pulsed laser excitations are demonstrated with no measurable crosstalk within our measurement accuracy. © 2013 OSA.
Sahin , D , Gaggero , A , Hoang , T B , Frucci , G , Mattioli , F , Leoni , R , Beetz , J , Lermer , M , Kamp , M , Höfling , S & Fiore , A 2013 , ' Integrated autocorrelator based on superconducting nanowires ' Optics Express , vol 21 , no. 9 , pp. 11162-11170 . DOI: 10.1364/OE.21.011162
© 2013 OSA. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at: http://www.opticsinfobase.org/oe/fulltext.cfm?uri=oe-21-9-11162&id=253169. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
This work was financially supported by the European Commission through FP7 QUANTIP (Contract No. 244026)
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