Polarization entangled photon-pair source based on quantum nonlinear photonics and interferometry
arXiv:1403.8026 · doi:10.1016/j.optcom.2014.03.056
Abstract
We present a versatile, high-brightness, guided-wave source of polarization entangled photons, emitted at a telecom wavelength. Photon-pairs are generated using an integrated type-0 nonlinear waveguide, and subsequently prepared in a polarization entangled state via a stabilized fiber interferometer. We show that the single photon emission wavelength can be tuned over more than 50 nm, whereas the single photon spectral bandwidth can be chosen at will over more than five orders of magnitude (from 25 MHz to 4 THz). Moreover, by performing entanglement analysis, we demonstrate a high degree of control of the quantum state via the violation of the Bell inequalities by more than 40 standard deviations. This makes this scheme suitable for a wide range of quantum optics experiments, ranging from fundamental research to quantum information applications. We report on details of the setup, as well as on the characterization of all included components, previously outlined in F. Kaiser et al. (2013 Laser Phys. Lett. 10, 045202).
16 pages, 7 figures
References in corpus (12)
- Free-Space distribution of entanglement and single photons over 144 km
- Quantum Storage of Photonic Entanglement in a Crystal
- A quantum delayed choice experiment
- Entanglement-enabled delayed choice experiment
- Photonic crystal fibre source of photon pairs for quantum information processing
- Time-bin modulated polarization-entangled biphotons from cavity-enhanced down-conversion
- Experimental polarization encoded quantum key distribution over optical fibres with real-time continuous birefringence compensation
- High coherence photon pair source for quantum communication
- Quantum key distribution over 30km of standard fiber using energy-time entangled photon pairs: a comparison of two chromatic dispersion reduction methods
- High-quality polarization entanglement state preparation and manipulation in standard telecommunication channels
- Temperature-dependent absolute refractive index measurements of synthetic fused silica
- Analysis of Elliptically Polarized Maximally Entangled States for Bell Inequality Tests