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For the waveguide grating photocoupler with novel structure [Yu XQ, Zhang X, Wong KS, Xu GB, Xu XG, Ren Y, et al. A fabrication of coupling grating in the polymeric waveguide by using two-photon initiated photopolymerization. Mater Lett 2004;58:3879–83. [1]; Yu XQ, Zhang X, Xu GB, Zhao HP, He W, Shao ZS, et al. Fabrication of grating waveguide and coupling grating using two-photon initiated photopolymerization. Chem J Chin Univ 2004;25(10):1931–3 (in Chinese). [2]], the electric fields of the TE guided wave and the TE radiating wave are obtained by solving the Helmholtz equation in the spatial rectangular coordinates. And then the relations between the loss coefficient and the different structure parameters of the waveguide and grating are analyzed by using the mode coupling theories, and their corresponding numerical simulation results are given. In the end the result obtained for this novel structure and that for conventional rectangle structure are compared, and the difference and the sameness are obtained. 相似文献
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双路高速高增益光电耦合器 总被引:1,自引:0,他引:1
本文叙述了双路高速高增益光电耦合器的元件选择、结构、工作原理、基本特性和应用。 相似文献
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采用电压频率变换和频率电压变换技术处理模拟信号,有效的克服了光电耦合器的非线性,实现了模拟信号的线性光电隔离。该组件用混合集成工艺制作,将四路模拟信号的光电隔离集成在一块芯片上。‘ 相似文献
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固态继电器的电磁兼容测试 总被引:1,自引:0,他引:1
电磁兼容(EMC)在电子产品中是一项重要的技术指标。本文介绍影响固态继电器(SSR)EMC的主要因素、试验方法和判定标准。同时,提出了测试时注意事项和给出了一组具有实用价值的结果。 相似文献
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