Optical precursors in coupled-resonator-induced transparency.
Optical precursors in coupled-resonator-induced transparency.
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DOI：
10.1364/ol.37.002964
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发表时间：
2012-07
期刊：
影响因子：
3.6
通讯作者：
Tohru Oishi;Ryuta X. Suzuki;P. Sultana;M. Tomita
中科院分区：
文献类型：
--
作者：
Tohru Oishi;Ryuta X. Suzuki;P. Sultana;M. Tomita
实验研究了时间方波调制光脉冲通过耦合环形腔的传输。当方波脉冲进入系统时，会出现尖锐的瞬态尖峰。主信号通过耦合谐振器诱导透明（CRIT）逐渐增长，时间常数由第二个谐振器确定。瞬态尖峰归因于入射脉冲的较高和较低的光谱分量，谐振器对此无法响应;因此，它们被解释为光学前兆。因此，实验表明，前兆和主信号可以被单独观察到，振幅与CRIT中的入射阶跃的振幅相当。
We experimentally examined the propagation of temporally square modulated optical pulses through a coupled ring resonator. Sharp transient spikes appeared as the square pulses entered the system. The main signal gradually grew up through coupled-resonator-induced transparency (CRIT), with the time constant determined by a second resonator. Transient spikes were attributed to the higher and lower spectral components of the incident pulse, to which the resonators cannot respond; hence, they were interpreted as optical precursors. The experiments, therefore, demonstrated that precursors and the main signal can be observed separately, with amplitudes comparable to that of the incident step in CRIT.