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利用耦合模理论、电光调制理论和微环谐振理论,提出了一个完善合理的聚合物微环谐振器电光开关阵列模型.该器件由1条水平信道、N条竖直信道和N个微环构成,在微环上施加不同方式的驱动电压,可以实现N+1条信道的开关功能.以1×8信道结构为例,在1550nm谐振波长下对该器件进行了优化设计和模拟分析.其结果是:微环波导芯的截面尺寸为1.7×1.7μm2,波导芯与电极间的缓冲层厚度为2.5μm,电极厚度为0.2μm,微环半径为13.76μm,微环与信道间的耦合间距为0.14μm,输出光谱的3dB带宽约为0.05nm,开关电压约为12.6V,插入损耗约为0.67～1.26dB,串扰小于-20dB,开关时间约为11.35ps.
Based on the coupled mode theory, electro-optic modulation theory and micro-ring resonance theory, a perfect and reasonable polymer micro-ring resonator electro-optic switch array model is proposed. The device consists of one horizontal channel, N vertical channels and N microcycles , The application of different driving voltages on the micro-ring can realize the switching function of N + 1 channels. Taking the 1 × 8 channel structure as an example, the device has been optimized and simulated under the wavelength of 1550 nm. Is that the micro-ring waveguide core has a cross-sectional area of 1.7 × 1.7 μm 2, a buffer layer thickness of 2.5 μm between the waveguide core and the electrode, an electrode thickness of 0.2 μm, a micro-ring radius of 13.76 μm, and a coupling spacing 0.14μm. The 3dB bandwidth of the output spectrum is about 0.05nm, the switching voltage is about 12.6V, the insertion loss is about 0.67 ~ 1.26dB, the crosstalk is less than -20dB and the switching time is about 11.35ps.