Frequency transfer via a two-way optical phase comparison on a multiplexed fiber network.

We performed a two-way remote optical phase comparison on optical fiber. Two optical frequency signals were launched in opposite directions in an optical fiber and their phases were simultaneously measured at the other end. In this technique, the fiber noise is passively canceled, and we compared two optical frequencies at the ultimate 10(-21) stability level. The experiment was performed on a 47 km fiber that is part of the metropolitan network for Internet traffic. The technique relies on the synchronous measurement of the optical phases at the two ends of the link, which is here performed by digital electronics. This scheme offers some advantages with respect to active noise cancellation schemes, as the light travels only once in the fiber.

• Publication year

  2013

• Venue

  Optics Letters

• Publication date

  2013-08-11

• Fields of study

  Medicine, Physics, Engineering

• Identifiers
  DOI 10.1364/OL.39.001177arXiv 1308.2377PMID 24690700
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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