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利用两组串联五环谐振器以及它们与两信道波导的交叉耦合作用,优化设计并模拟了一种超低串扰2×2新型聚合物电光开关.为了表征器件的输出光功率特性,给出了器件结构、分析理论和相关公式.为了在下行端口(drop端口)得到箱型光谱响应以及极低的串扰和插入损耗,优化了微环谐振级数和耦合间距.对器件输出光功率和输出光谱的模拟分析结果显示,器件交叉和直通态间的切换电压为4V,交叉和直通态下两端口间的串扰分别为-66dB和-54.7dB,插入损耗分别为2.34dB和0.24dB.在1GHz方波信号作用下,器件drop端口的上升和下降时间分别为15ps和90ps.由于聚合物微环的弯曲半径仅为19.45μm,因此该器件具有超紧凑的尺寸,其长度和宽度仅为0.407mm,约为马赫-曾德尔干涉仪或者定向耦合器等一般结构聚合物电光开关长度的1/10.依赖于小的封装尺寸和极低的串扰,该器件可以高密度地集成在光电子芯片上,在光片上网络中光信号的控制方面具有潜在的应用.
A novel ultra-low crosstalk 2 × 2 novel polymer electro-optical switch is optimized and cross-coupled by using two series of five-ring resonators and their cross-coupling with two channel waveguides. In order to characterize the output optical power of the device, Device structure, analytical theory and related formulas. In order to obtain box-type spectral response and very low crosstalk and insertion loss at the drop port, the microring resonant order and coupling pitch are optimized. The output optical power and output spectrum The simulation results show that the crossover voltage between the cross and the direct mode is -66dB and -54.7dB, respectively, and the insertion loss is 2.34dB and 0.24dB, respectively. Wave signal, the device drop port rise and fall time were 15ps and 90ps. Due to the bending radius of the polymer micro-ring is only 19.45μm, so the device has an ultra-compact size, the length and width of only 0.407mm, About Mach-Zehnder interferometer or directional coupler general structure polymer electro-optic switch length of 1 / 10. Rely on the small package size and low crosstalk, the device can be high-density To the optoelectronic chip, on the light control sheet of the optical signal has potential applications in the network.