A nanodiamond-tapered fiber system with high single-mode coupling efficiency

Tim Schröder, Masazumi Fujiwara, Tetsuya Noda, Hong Quan Zhao, Oliver Benson, Shigeki Takeuchi

Research output: Contribution to journalArticlepeer-review

83 Citations (Scopus)


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-randomnumber generation and nano-magnetometry.

Original languageEnglish
Pages (from-to)10490-10497
Number of pages8
JournalOptics Express
Issue number10
Publication statusPublished - May 7 2012
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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