METHOD AND DEVICE FOR SYNCHRONIZING ENTANGLEMENT SOURCES FOR A QUANTUM COMMUNICATION NETWORK

摘要

According to one aspect, the invention relates to a device (20) for synchronizing optical pumping entanglement sources (141, 142) in a quantum communication network, including a pulsed light source (21) enabling the emission of telecom-wavelength light pulses (I1, I2), which are distributed in parallel with all of the entanglement sources in order to provide an optical clock common to said entanglement sources and including, for each entanglement source, a device (243, 253) for converting the frequency of the distributed light pulse, thereby enabling a light pulse to be generated at a wavelength adapted to the optical pumping of the entanglement source in order to generate pairs of entangled photons.