Low-loss high-speed c-band fiber-optic switch suitable for quantum signals

Kim F. Lee*, Gregory S. Kanter

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Quantum signals such as entangled photons are typically at the sub-photon level and, thus, require near noise-less and low-loss components for their manipulation and processing. A common signal-manipulation tool is a 2 ×2 switch, and many applications of quantum switches also require fast switching rates and input signals in the fiber-friendly 1550-nm band. Traditional optical switching technology does not simultaneously meet all the desired metrics for a quantum switch. We demonstrate a low-noise fiber-optic photonic switch based on cross phase modulation that is fast (sub-ns), low loss (<1 dB), and operates in the 1550-nm wavelength band.

Original languageEnglish (US)
Article number8668492
Pages (from-to)705-708
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number9
StatePublished - May 1 2019


  • Single-photon switch
  • quantum communications
  • quantum information processing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Low-loss high-speed c-band fiber-optic switch suitable for quantum signals'. Together they form a unique fingerprint.

Cite this