20 February 2017 Tunable fast and slow light based on ring resonators and Mach-Zehnder interferometer
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Abstract
We theoretically demonstrate the transmittion spectra and dispersion characteristics based on the electromagnetically induced transparency like effect in the nested fiber double-ring resonator with the transfer matrix theory; the system which are connected by three directional couplers consists of two inner rings, one outer ring and one straight waveguide. The simulation results show that the tunable group delay can be realized by changing the coupling coefficients. In the NDRR coupled Mach-Zehnder interferometer system, we obtained fast light and slow light simultaneously. By adjusting appropriate parameters, we can archive flat band group delay curve that has a profound application in optical interferometer, optical buffer, optical filter, optical modulator, dynamic or static optical sensing field.
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Yundong Zhang, Yundong Zhang, Huaiyin Su, Huaiyin Su, Yongfeng Wu, Yongfeng Wu, Hui Li, Hui Li, Kai Ma, Kai Ma, Ping Yuan, Ping Yuan, } "Tunable fast and slow light based on ring resonators and Mach-Zehnder interferometer", Proc. SPIE 10119, Slow Light, Fast Light, and Opto-Atomic Precision Metrology X, 101190O (20 February 2017); doi: 10.1117/12.2261149; https://doi.org/10.1117/12.2261149
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