Active polarization control for quantum communication in long‐distance optical fibers with shared telecom traffic
Guilherme B. Xavier, G. Vilela de Faria, Thiago Ferreira da Silva, Guilherme P. Temporão, Jean Pierre von der Weid · Microwave and Optical Technology Letters · 2011
Abstract We experimentally demonstrate the compatibility of wavelength multiplexed active polarization stabilization for quantum communication in an optical fiber carrying telecom traffic. One of the feedback control channels contains a 9.953 Gb/s datastream generated from a BER meter. We verify the ability to transmit single‐photons in the two opposite directions of a 23‐km optical fiber spool, while maintaining their state of polarization stable and a classical BER in the feedback channel error‐free, during 6 h of continuous operation. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2661–2665, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop26320