A high-fidelity single-photon source based on a type-II optical parametric oscillator
arXiv:1207.6462 · doi:10.1364/OL.37.003738
Abstract
Using a continuous-wave type-II optical parametric oscillator below threshold, we have demonstrated a novel source of heralded single-photons with high-fidelity. The generated state is characterized by homodyne detection and exhibits a 79% fidelity with a single-photon Fock state (91% after correction of detection loss). The low admixture of vacuum and the well-defined spatiotemporal mode are critical requirements for their subsequent use in quantum information processing.
References in corpus (7)
- How good must single photon sources and detectors be for efficient linear optical quantum computation?
- Quantum homodyne tomography of a two-photon Fock state
- High purity bright single photon source
- Tomographic reconstruction of the single-photon Fock state by high-frequency homodyne detection
- Efficient retrieval of a single excitation stored in an atomic ensemble
- Linear-optical processing cannot increase photon efficiency
- Linear optical quantum computation with imperfect entangled photon-pair sources and inefficient non-photon-number-resolving detectors