Arrayed and checkerboard optical waveguides controlled by the electromagnetically induced transparency

Yongyao Li, Boris A. Malomed, Mingneng Feng, Jianying Zhou

Research output: Contribution to journalArticlepeer-review

Abstract

We introduce two models of quasidiscrete optical systems: an array of waveguides doped by four-level N-type atoms, and a nonlinear checkerboard pattern, formed by doping with three-level atoms of the Λ-type. The dopant atoms are driven by external fields, to induce the effect of the electromagnetically induced transparency (EIT). These active systems offer advantages and additional degrees of freedom, in comparison with ordinary passive waveguiding systems. In the array of active waveguides, the driving field may adjust linear and nonlinear propagation regimes for a probe signal. The nonlinear checkerboard system supports the transmission of stable spatial solitons and their "fuzzy" counterparts, straight or oblique.

Original languageEnglish
Article number063813
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume82
Issue number6
DOIs
StatePublished - 10 Dec 2010

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