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.
In this paper, a pilot-based blind (PBB) phase estimation method for coherent optical orthogonal frequency-division multiplexing (CO-OFDM) is proposed. Instead of inserting the pilot-subcarriers that are loaded with the already known information in the OFDM signal, the unknown and specially designed signal is used to replace the signal on the pilot subcarriers to decrease the waste of spectrum and...
We demonstrate a novel method based on DD-OFDM to measure the property of passive optical components. In experiment, we realize the transfer function measurement of the delay interferometer (DI) with 3.9-MHz resolution and an ultra-fast measurement speed.
We theoretically and experimentally study the impact of implementation imperfections on the quality of multicarrier sources generated by re-circulating frequency shifting. Based on an optimized design, a stable and high-quality 50-carrier source is experimentally demonstrated.
We theoretically study the stability of single-sideband-modulator based recirculating frequency shifter (RFS) used for Tb/s multi-carrier optical transmission, in the presence of modulator nonlinearity and optical amplifier noise. Optimum operation conditions are found for various scenarios.
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.