Reducing multi-photon rates in pulsed down-conversion by temporal multiplexing

Abstract

We present a simple technique to reduce the emission rate of higher-order photon events from pulsed spontaneous parametric down-conversion. The technique uses extra-cavity control over a mode locked ultrafast laser to simultaneously increase repetition rate and reduce the energy of each pulse from the pump beam. We apply our scheme to a photonic quantum gate, showing improvements in the non-classical interference visibility for 2-photon and 4-photon experiments, and in the quantum-gate fidelity and entangled state production in the 2-photon case.

8 pages, 6 figures

References in corpus (8)

• Experimental generation of single photons via active multiplexing
• High purity bright single photon source
• Bright source of spectrally uncorrelated polarization-entangled photons with nearly single-mode emission
• Single-photon device requirements for operating linear optics quantum computing outside the post-selection basis
• Generation of two-photon states with arbitrary degree of entanglement via nonlinear crystal superlattices
• Fast quantum dot single photon source triggered at telecommunications wavelength
• Generation of Fourier transform limited heralded single photons
• Understanding photonic quantum-logic gates: The road to fault tolerance

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