2014/03/31 by F. Kaiser, Florian Kaiser, L. A. Ngah +20
Computer Science · Engineering · Physics and Astronomy · #Interferometry #Mechanical and Optical Resonators #Optics #Photon #Photon entanglement #Photonic and Optical Devices #Photonic-crystal fiber #Photonics #Physics #Polarization (electrochemistry) #Quantum #Quantum Information and Cryptography #Quantum entanglement #Quantum imaging #Quantum information science #Quantum mechanics #Quantum network #Quantum optics #Quantum sensor #Spontaneous parametric down-conversion #Supercontinuum #Wavelength #quant-ph
paper · pdf · doi:10.1016/j.optcom.2014.03.056
published as Optics Communications 327 (2014) 7-16 · 16 pages, 7 figures
arxiv created 2014/03/31 · openalex publication_date 2014/04/03 · arxiv updated 2014/08/06 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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).