摘要：We design a novel kind of polarization beam splitter based on a gold-filled dual-core photonic crystal fiber （DC-PCF）. Owing to filling with two gold wires in this DC-PCF, its coupling characteristics can be changed greatly by the second-order surface plasmon polariton （SPP） and the resonant coupling between the surface plasmon modes and the fiber-core guided modes can enhance the directional power transfer in the two fiber-cores. Numerical results by using the finite element method show the extinction ratio at the wavethlengths of 1.327 μm and 1.55 μm can reach -58 dB and -60 dB and the bandwidths as the extinction ratio better than -12 dB are about 54 nm and 47 nm, respectively. Compared with the gold-unfilled DC-PCF, a 1.746-mm-long gold-filled DC-PCF is better applied to the polarization beam splitter in the two communication bands of λ = 1.327 μm and 1.55 μm.

摘要：该文设计了一种基于STM32F103VC单片机的多功能便携式自动体外除颤仪。该除颤仪主要实现了除颤和心电分析功能,并根据临床实际需要实现了信息存储、信息传输、使用记录本地查询、除颤过程LCD显示及语音提示、利用除颤电极进行人体阻抗测量,心电采集等功能。设计与实现了基于过阻尼二阶放电电路的双相波除颤仪的放电模块,并且利用双核技术完成了基于PIC24FJ256DA210芯片控制的实时除颤信息LCD显示及语音提示模块。