Open AccessPolarization-dependent photon switch in a one-dimensional coupled-resonator waveguide
Author(s) -
Zhe-Yong Zhang,
Yinmao Dong,
Shengli Zhang,
Shiqun Zhu
Publication year - 2013
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.020786
Subject(s) - resonator , physics , photon , polarization (electrochemistry) , optics , photon polarization , waveguide , quantum optics , orthogonal polarization spectral imaging , optoelectronics , laser , chemistry
Polarization-dependent photon switch is one of the most important ingredients in building future large-scale all-optical quantum network. We present a scheme for a single-photon switch in a one-dimensional coupled-resonator waveguide, where N(a) Λ-type three-level atoms are individually embedded in each of the resonator. By tuning the interaction between atom and field, we show that an initial incident photon with a certain polarization can be transformed into its orthogonal polarization state. Finally, we use the fidelity as a figure of merit and numerically evaluate the performance of our photon switch scheme in varieties of system parameters, such as number of atoms, energy detuning and dipole couplings.