Tunable asymmetrical Fano resonance and bistability in a microcavity-resonator-coupled Mach-Zehnder interferometer.
Tunable asymmetrical Fano resonance and bistability in a microcavity-resonator-coupled Mach-Zehnder interferometer.
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DOI：
10.1364/ol.30.003069
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发表时间：
2005-11
期刊：
影响因子：
3.6
通讯作者：
Ying Lu;Jianquan Yao;Xifu Li;Peng Wang
中科院分区：
文献类型：
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作者：
Ying Lu;Jianquan Yao;Xifu Li;Peng Wang
我们提出了一个简单的微谐振器方案的Mach-Zehnder干涉仪中，一个微谐振器是侧耦合到一个臂和移相器被引入到另一个臂，产生一个不对称的Fano谐振线的形状。在该系统中，移相器用于控制非对称线形的变化，在很窄的频率范围内与谐振最小值相邻的另一个反向谐振，这是由直接通道和高Q谐振间接通道之间的干扰引起的。我们还从理论上研究了基于这些形状的新的双稳态特性。
We propose a simple microresonator scheme for a Mach-Zehnder interferometer in which a microresonator is side coupled to one arm and a phase shifter is introduced into the other arm, to produce an asymmetric Fano-resonance line shape. In this system, a phase shifter is used to control the variation of the asymmetric line shape, with another reverse resonance next to a resonance minimum over a very narrow frequency range, which results from the interference between a direct channel and a high-Q resonance indirect channel. We also theoretically investigate the novel bistability characteristic based on these shapes.