Shenglan Song

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This paper proposes a novel directional pilot protection method based on the transient energy for bipolar HVDC line. Supposing the positive direction of current is from DC bus to the DC line, in the case of an internal line fault, the transient energies detected on both sides of the line are all negative within a short time, which denotes the positive(More)
New, cost effective fabrication processes for bonding and thinning silicon wafers for improving device performance and creating 3-D structures were investigated. Wafer bonding and de-bonding are key fabrication steps for many applications such as 3-D devices. Double bond transfer and single bond processes to fabricate silicon thin films on permanent(More)
We proposed a proof-of-concept silicon-on-insulator (SOI) compatible tunable delay line. The thermally controlled eye-like ring resonator add/drop filter is utilized. By controlling the optical power coupling into the resonator through the temperature-controlled Mach Zehnder Interferometer (MZI) power splitter, a continuously tunable group delay is(More)
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