基于行波状法布里-珀罗谐振器的分插复用滤波器。
Traveling wave-like Fabry-Perot resonator-based add-drop filters.
作者信息
Huang Qingzhong, Liu Qiang, Xia Jinsong
出版信息
Opt Lett. 2017 Dec 15;42(24):5158-5161. doi: 10.1364/OL.42.005158.
We have proposed and studied a novel channel add-drop filter (ADF) based on a single Fabry-Perot resonator. The resonator consists of two mode-conversion Bragg grating reflectors separated by a wide waveguide that laterally coupled to two narrow waveguides. It behaves like a traveling-wave resonator where fields are coupled to the buses in one direction. Compact and narrowband ADFs are achieved with dropping efficiencies higher than 95%, as shown by the three-dimensional finite-difference time-domain simulations. In addition, the proposed device is applied to realize an eight-channel add-drop multiplexer in the C-band by cascading the ADFs with adjusted channel wavelengths.
我们提出并研究了一种基于单个法布里-珀罗谐振器的新型信道分插滤波器（ADF）。该谐振器由两个模式转换布拉格光栅反射器组成，它们由一个宽波导隔开，该宽波导横向耦合到两个窄波导。它的行为类似于行波谐振器，其中场在一个方向上耦合到总线。如三维时域有限差分模拟所示，实现了紧凑且窄带的ADF，其分插效率高于95%。此外，通过将具有调整后的信道波长的ADF级联，将所提出的器件应用于在C波段实现八信道分插复用器。
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