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

Abstract

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.

© 2014 Optical Society of America

Cascaded multiplexed optical link on a telecommunication network for frequency dissemination

Olivier Lopez, Adil Haboucha, Fabien Kéfélian, Haifeng Jiang, Bruno Chanteau, Vincent Roncin, Christian Chardonnet, Anne Amy-Klein, and Giorgio Santarelli
Opt. Express 18(16) 16849-16857 (2010)

Cascaded optical fiber link using the internet network for remote clocks comparison

Nicola Chiodo, Nicolas Quintin, Fabio Stefani, Fabrice Wiotte, Emilie Camisard, Christian Chardonnet, Giorgio Santarelli, Anne Amy-Klein, Paul-Eric Pottie, and Olivier Lopez
Opt. Express 23(26) 33927-33937 (2015)

Ultra-stable long distance optical frequency distribution using the Internet fiber network

Olivier Lopez, Adil Haboucha, Bruno Chanteau, Christian Chardonnet, Anne Amy-Klein, and Giorgio Santarelli
Opt. Express 20(21) 23518-23526 (2012)

High-resolution optical frequency dissemination on a telecommunications network with data traffic

Fabien Kéfélian, Olivier Lopez, Haifeng Jiang, Christian Chardonnet, Anne Amy-Klein, and Giorgio Santarelli
Opt. Lett. 34(10) 1573-1575 (2009)

Feed-forward digital phase compensation for long-distance precise frequency dissemination via fiber network

Xing Chen, Jian Zhang, Jinlong Lu, Xing Lu, Xusheng Tian, Bo Liu, Hong Wu, Tingsong Tang, Kebin Shi, and Zhigang Zhang
Opt. Lett. 40(3) 371-374 (2015)