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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.
We present results for a broad bandwidth continuously tunable optical delay line based on the balanced side-coupled integrated space sequence of resonators scheme. A tunable delay of up to 345 ps is obtained without distortion of the optical signal. Fast thermal switching speed under 10 is achieved without any measurable long-term transient by utilizing a novel balanced thermal tuning...
Using the Balanced SCISSOR scheme, together with balanced thermal tuning, microresonator based silicon photonics devices were shown to provide a large tunable delay of 345ps, with broad bandwidth and low distortion. These practical devices will find many applications for use in phased array systems.
We demonstrate a tunable-delay of 154ps of a 130GHz bandwidth RF signal using silicon microresonators. To delay such high bandwidth without distortion, we delay an equivalent signal with a much smaller bandwidth (20GHz single sideband) while preserving the original signal's phase.
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