156 citations · 1.3k across the 31 of their papers we have counts for
5 papers · 1 filter
Heralded generation of high-purity ultrashort single photons in programmable temporal shapes
Vahid Ansari, Emanuele Roccia, Matteo Santandrea +9
We experimentally demonstrate a source of nearly pure single photons in arbitrary temporal shapes heralded from a parametric down-conversion (PDC) source at telecom wavelengths. Th…
Trading quantum states for temporal profiles: tomography by the overlap
Johannes Tiedau, Valery S. Shchesnovich, Dmitri Mogilevtsev +5
Quantum states and the modes of the optical field they occupy are intrinsically connected. Here, we show that one can trade the knowledge of a quantum state to gain information abo…
Streak-camera measurements of single photons at telecom wavelength
Markus Allgaier, Vahid Ansari, Christof Eigner +8
Up to this point streak-cameras have been a powerful tool for temporal characterization of ultrafast light pulses even at the single photon level. However, the low signal-to-noise…
Fast time-domain measurements on telecom single photons
Markus Allgaier, Gesche Vigh, Vahid Ansari +5
Direct measurements on the temporal envelope of quantum light are a challenging task and not many examples are known since most classical pulse characterisation methods do not work…
Temporal-mode measurement tomography of a quantum pulse gate
Vahid Ansari, Georg Harder, Markus Allgaier +2
Encoding quantum information in the photon temporal mode (TM) offers a robust platform for high-dimensional quantum protocols. The main practical challenge, however, is to design a…