title: Ultrafast time measurements by time-correlated single photon counting coupled with superconducting single photon detector.
abstract: Time resolution is one of the main characteristics of the single photon detectors besides quantum efficiency and dark count rate. We demonstrate here an ultrafast time-correlated single photon counting (TCSPC) setup consisting of a newly developed single photon counting board SPC-150NX and a superconducting NbN single photon detector with a sensitive area of 7 × 7 μm. The combination delivers a record instrument response function with a full width at half maximum of 17.8 ps and system quantum efficiency ∼15% at wavelength of 1560 nm. A calculation of the root mean square value of the timing jitter for channels with counts more than 1% of the peak value yielded about 7.6 ps. The setup has also good timing stability of the detector-TCSPC board.
authors.affiliation: Becker & Hickl GmbH, Nahmitzer Damm 30, 12277 Berlin, Germany.
authors.forename: V
authors.initials: V
authors.lastname: Shcheslavskiy
authors.affiliation: Scontel, Rossolimo St., 5/22-1, Moscow 119021, Russian Federation.
authors.forename: P
authors.initials: P
authors.lastname: Morozov
authors.affiliation: Scontel, Rossolimo St., 5/22-1, Moscow 119021, Russian Federation.
authors.forename: A
authors.initials: A
authors.lastname: Divochiy
authors.affiliation: Scontel, Rossolimo St., 5/22-1, Moscow 119021, Russian Federation.
authors.forename: Yu
authors.initials: Y
authors.lastname: Vakhtomin
authors.affiliation: Scontel, Rossolimo St., 5/22-1, Moscow 119021, Russian Federation.
authors.forename: K
authors.initials: K
authors.lastname: Smirnov
authors.affiliation: Becker & Hickl GmbH, Nahmitzer Damm 30, 12277 Berlin, Germany.
authors.forename: W
authors.initials: W
authors.lastname: Becker