Fano resonance in a multimode tapered fiber coupled with a microspherical cavity
Fano resonance in a multimode tapered fiber coupled with a microspherical cavity
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DOI：
10.1063/1.1951049
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发表时间：
2005-06-27
影响因子：
4
通讯作者：
Sasaki, K
中科院分区：
文献类型：
--
作者：
Chiba, A;Fujiwara, H;Sasaki, K
研究了锥形光纤与高Q微球接触时的法诺共振。多模波在直径为2.3 μ m的圆锥体中传播，与直径为220 μ m的球体中的回音壁模式耦合，它们的相干相互作用导致Fano共振。透射谱的非对称线形随耦合位置沿沿着锥度的扫描而周期性变化。观察到的24 μ m周期是由于锥形光纤中的模式色散。
Fano resonance in a tapered optical fiber in contact with a high-Q microsphere is demonstrated. Multimode waves propagating in a 2.3 mu m diameter taper were coupled with a single whispering gallery mode of a 220 mu m sphere, and their coherent interaction resulted in Fano resonance. The asymmetric line shapes of the transmission spectra changed periodically with scanning of the coupling position along the taper. The observed 24 mu m period was due to modal dispersion in the tapered fiber.