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Analysis of coupled microcircular resonators coupled to a bus waveguide with high output efficiency

机译:高输出效率耦合到总线波导的耦合微圆谐振器分析

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Coupled microcircular resonators tangentially coupled to a bus waveguide, which is between the resonators, are numerically investigated by the finite-difference time-domain technique. For symmetrically coupled microcircular resonators with refractive index of 3.2, radius of 2 (mu)m, and width of the bus waveguide of 0.4 (mu)m, a mode Q factor of the order of 10~(5) is obtained for a mode at the frequency of 243 THz. An output coupling efficiency of as high as 0.99 is calculated for a mode with a Q factor ranging from 10~(3) to 10~(4). The mode Q factor is 2 orders larger than that of the modes confined in a single circular resonator tangentially coupled to the same bus waveguide. Furthermore, the high Q traveling modes in the coupled microcircular resonators are suitable for optical single processing.
机译:通过有限差分时域技术数值研究了切向耦合到谐振器之间的总线波导的耦合微圆谐振器。对于折射率为3.2,半径为2μm,总线波导的宽度为0.4μm的对称耦合微圆谐振器,对于一个模式,可以获得大约10〜(5)的模式Q因子。以243 THz的频率对于Q因子为10〜(3)至10〜(4)的模式,计算出的输出耦合效率高达0.99。模式Q因子比切向耦合到同一总线波导的单个圆形谐振器中的模式大2倍。此外,耦合的微圆谐振器中的高Q行进模式适用于光学单处理。

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