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.
We demonstrate a tunable optical time delay line based on Si3N4 ring resonators. A continuously tunable 1.4 ns optical delay is achieved with over 3.5 GHz bandwidth. The maximum tunable delay can be easily extended to several nanoseconds by modifying the ring coupler κ.
This paper described the first results demonstrating the Super-Ring tuning concept applied to a 40 microresonator based TTD device, operating with the Balanced SCISSOR scheme. Tunable delay up to 515ps of a 20GHz BW RF photonic signal was shown, using only two drive voltages, with SFDR over 110dB.Hz2/3 for delays up to 300ps.
Commercially packaged optical true-time-delay devices were developed utilizing ultra-low loss silicon nitride microresonators, achieving record tunable delay of 535ps for a 20GHz wide signal, 632ps for a 10GHz wide signal, with tunable loss of 3dB.
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.