title: A nanodiamond-tapered fiber system with high single-mode coupling efficiency.
abstract: We present a fiber-coupled diamond-based single photon system. Single nanodiamonds containing nitrogen vacancy defect centers are deposited on a tapered fiber of 273 nanometer in diameter providing a record-high number of 689,000 single photons per second from a defect center in a single-mode fiber. The system can be cooled to cryogenic temperatures and coupled evanescently to other nanophotonic structures, such as microresonators. The system is suitable for integrated quantum transmission experiments, two-photon interference, quantum-random-number generation and nano-magnetometry.
authors.affiliation: Institute of Physics, AG Nano-Optik, Humboldt-Universitt zu Berlin, Berlin, Germany. tim.schroeder@physik.hu-berlin.de
authors.forename: Tim
authors.initials: T
authors.lastname: Schröder
authors.forename: Masazumi
authors.initials: M
authors.lastname: Fujiwara
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Noda
authors.forename: Hong-Quan
authors.initials: HQ
authors.lastname: Zhao
authors.forename: Oliver
authors.initials: O
authors.lastname: Benson
authors.forename: Shigeki
authors.initials: S
authors.lastname: Takeuchi
mesh_terms: D003460:Crystallization; D004867:Equipment Design; D007477:Ions; D060306:Magnetometry / Q000379:methods*; D008422:Materials Testing; D018613:Microscopy, Confocal / Q000379:methods; D058612:Nanodiamonds; D036103:Nanotechnology / Q000379:methods*; D009584:Nitrogen / Q000737:chemistry; D055095:Optics and Photonics / Q000379:methods*; D017785:Photons
chemical_list: D007477:Ions; D058612:Nanodiamonds; D009584:Nitrogen