Coupled-resonator-induced transparency in a fiber system
D. D. Smith, N.N. Lepeshkin, A. Schweinsberg, G. Gehring, R.W. Boyd, Q-H. Park, H. Chang and D.J. Jackson
Optics Communications 264, 163-168 (2006)Mode splitting in two coupled fiber-ring resonators is observed. We observe a cancellation of on-resonance absorption, which can be interpreted as resulting from the destructive interference of the symmetric and anti-symmetric modes of the system, in analogy with electromagnetically-induced transparency in atoms. The response of the system is characterized according to the degeneracy and distinguishability of the normal modes. Finite-difference time-domain simulations agree with an analysis of the transient response of the intra-cavity fields, and reveal coherent oscillations of the photons between the resonators, i.e., under-damped Rabi oscillations, which we predict to occur for distinguishable mode splittings.
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