The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A nonintrusive technique to continuously control random polarization rotations for quantum communications is proposed. It allows an automatic control of the random polarization rotations that photons suffer during their propagation inside standard fibers, without the use of additional classical signals and hardware. The polarization control method is based on a rigorous and efficient estimation of...
We present an experimental characterization of the evolution of the photon statistics of a quantum signal, in a wavelength-division multiplexing (WDM) environment. We use an on/off avalanche photodetector operating in the Geiger mode to measure the photon counts, and the maximum-likelihood estimation (MLE) method and the expectation-maximization (EM) algorithm to reconstruct the photon statistics...
We discuss the statistics of Poissonian and thermal sources, and verify that as an approximation to a single-photon source, both Poissonian and thermal sources can be used, when the average number of photons per pulse is of the order of 0.1. An experimental characterization of the photon statistics of a single-photon source obtained from the four-wave mixing (FWM) process in optical fibers is presented...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.