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This paper presents a framework for operational risk assessment of wind turbines (WTs). In the framework, a model for operational risk assessment of WT converters is established while considering the converter topological structures and the risk assessment of power modules, including insulated gate bipolar translator (IGBTs), diodes, and DC link capacitors. The WT anomaly detection is based on supervisory...
We demonstrate low-loss fiber-to-chip coupling using 7.3 μm long silicon strip waveguide cantilever couplers. Average coupling losses are measured to be less than 0.62 dB per connection throughout the optical telecommunications C band.
In this paper, we demonstrate high-efficiency inscription of Bragg gratings in microfiber. Strong Bragg gratings are easily inscribed using a 193-nm excimer laser and phase mask in microfiber drawn from the 62.5/125- standard multimode fiber (MMF) with no additional photosensitization treatment. The enlarged photosensitive core offered by the MMF provides a sufficient overlap between the...
We demonstrate vertical chip-to-chip light coupling using silicon strip waveguide cantilever couplers. A chip-to-chip coupling loss of 2.5 dB per connection is measured for TE polarization at 1550 nm wavelength.
We demonstrate fiber-to-chip cantilever couplers that enable access to photonic devices on a chip surface without dicing or cleaving. Coupling efficiencies of 1.6 dB (TE) and 2 dB (TM) are achieved.
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