CAJ | 학술논문

利用耦合模理论、电光调制理论和微环谐振理论,提出一个聚合物串联耦合双环电光开关器件模型,在1.55 μm谐振波长下对该器件进行了模拟和优化.结果为:微环波导芯截面尺寸为1.6×1.6 μm2,波导芯与电极间的限制层厚度为1.6 μm,电极厚度为0.15 μm,微环半径为15.2 μm,微环与信道间的耦合间距为0.14 μm,微环与微环间的耦合间距为0.6 μm,输出光谱的3 dB带宽约为0.06 nm,开关电压约为6 V左右,插入损耗约为2.2 dB,串扰约为-20 dB.所设计的双环电光开关较单环型电光开关不仅输出光谱更加平坦陡峭,非谐振光更弱,而且开关电压更低.
이용우합모이론、전광조제이론화미배해진이론,제출일개취합물천련우합쌍배전광개관기건모형,재1.55 μm해진파장하대해기건진행료모의화우화.결과위:미배파도심절면척촌위1.6×1.6 μm2,파도심여전겁간적한제층후도위1.6 μm,전겁후도위0.15 μm,미배반경위15.2 μm,미배여신도간적우합간거위0.14 μm,미배여미배간적우합간거위0.6 μm,수출광보적3 dB대관약위0.06 nm,개관전압약위6 V좌우,삽입손모약위2.2 dB,천우약위-20 dB.소설계적쌍배전광개관교단배형전광개관불부수출광보경가평탄두초,비해진광경약,이차개관전압경저.
In terms of the coupled mode theory,microring resonance theory and electro-optic modulation theory,a reasonable project is proposed for designing a polymer electro-optic switch based on the double series-coupled microrings.The simulation and optimization are performed under the resonant wavelength of 1.55 μm,the results are as follows:the core size of the microring is 1.6×1.6 μm2,confined layer between the core and the electrode is 1.6 μm,thickness of the electrode is 0.15 μm,radius of the microring is 15.2 μm,coupling gap between the micoring and the channel is 0.14 μm,that between the micoring and the microring is 0.6 μm,3 dB bandwidth is 0.06 μm,switching voltage is 6 V,insertion loss is 2.2 dB,and crosstalk is -20 dB.The output spectrum is flatter and steeper than that of the single microring.These results show that the designed device exhibits favorable switching functions.