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Now coupling interferometer structure based on photonic crystal fiber (PCF) gets extensive attention in hydrogen sensing. Because of its structural stability, high sensitivity characteristics, it has achieved good results in the hydrogen sensor, when combine with the hydrogen-sensitive film such as Pd-WO3. In the initial experiment, the hydrogen sensor based on PCF coated with Pd-WO3 showed good linearity...
A novel hollow-core fiber (HCF) curvature sensor based on a tapered HCF sandwiched between two single mode fibers (Butterfly-Shape Structure) is proposed and experimentally demonstrated. The collapsed region around the first fusion interface excites the high-order modes, and the butterfly shape couples the high-order modes back into the core and interferes with the fundamental mode in the second fusion...
A novel refractive index (RI) sensor based on an asymmetrical Mach-Zehnder interferometer (MZI) with two different step-like tapers is proposed. The step-like taper is fabricated by fusion splicing two half tapers with an appropriate offset. By further applying offset and discharging to the last fabricated step-like taper of MZI, influence of taper parameters on interference spectrum is investigated...
As virtualization becomes ubiquitous in datacenters, there is a growing interest in characterizing application performance in multi-tenant environments to improve datacenter resource management. The performance of parallel programs is notoriously difficult to reason about in virtualized environments. Although performance degradations caused by virtualization and interferences have been extensively...
In this paper, a robust timing and frequency synchronization method in the presence of narrowband interference is proposed for 230MHz electricity communication system. A narrowband interference detection module and an adaptive filter are applied in the synchronization approach. The former one is to find the narrowband disturbance that has larger power and provide information to configure the adaptive...
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