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首页> 外文期刊>Optical and quantum electronics >Asymmetric Fano resonance and bistability in a two-ring resonator optical switch with high extinction ratio and low switching threshold
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Asymmetric Fano resonance and bistability in a two-ring resonator optical switch with high extinction ratio and low switching threshold

机译：具有高消光比和低开关阈值的两环谐振器光开关的非对称Fano谐振和双稳态

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摘要

We propose a two-ring resonator configuration that can provide optical switching with both high extinction ratio (ER) and low switching threshold. The achievable input threshold is n_2I_(IN) ～ 10~(-5) or smaller, which is one order lower than that of the conventional one-ring configuration, while maintaining an ER of at least 10dB over a 10-GHz (0.1 nm) optical bandwidth. This performance is enabled by using an asymmetric Fano resonance as opposed to the usual symmetric resonance. The low switching threshold and the high ER are related to the sharpness and the asymmetricity of the Fano resonance, respectively.
机译：我们提出了一种两环谐振器配置，该配置可以提供具有高消光比（ER）和低切换阈值的光切换。可达到的输入阈值为n_2I_（IN）〜10〜（-5）或更小，比传统的单环配置低一个阶，同时在10 GHz（0.1 nm）上保持至少10dB的ER ）光带宽。通过使用非对称的Fano共振（与通常的对称共振相反）可以实现此性能。较低的开关阈值和较高的ER分别与Fano共振的清晰度和不对称性有关。

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