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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
Double-wavelength Fano resonance and enhanced coupled-resonator-induced transparency in a double-microcavity
Ying Lu1, Lijuan Xu, Yizhong Yu
1College of Precision Instrument and Opto-Electronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin, China. tjluying@eyou.com
Abstract:
We present a theoretical study on resonance control in a double-microcavity resonator system coupled to a waveguide with gain in one microresonator and loss in the other. We demonstrate the variation of the output spectra in the waveguide from initial double-wavelength-wide symmetric resonance to double-wavelength sharper asymmetric Fano profiles when gain is introduced in one of the two microresonators, as well as the inversion of the Fano resonance pattern when gain is introduced in the other microresonator. We also investigate the enhanced coupled-resonator-induced-transparency effect in such a system.
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