Arrayed and checkerboard optical waveguides controlled by the electromagnetically induced transparency

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.063813· OSTI ID:21528973

Yongyao, Li ^[1]; Malomed, Boris A ^[2]; Mingneng, Feng; Jianying, Zhou ^[1]

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1. State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275 (China)
2. Department of Interdisciplinary Studies, Faculty of Engineering, Tel Aviv University, Tel Aviv (Israel)

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 {Lambda}-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.

• OSTI ID: 21528973
• Journal Information: Physical Review. A, Vol. 82, Issue 6; Other Information: DOI: 10.1103/PhysRevA.82.063813; (c) 2010 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
DEGREES OF FREEDOM
DOPED MATERIALS
NONLINEAR PROBLEMS
OPACITY
OPTICAL SYSTEMS
PROBES
SIGNALS
SOLITONS
TRANSMISSION
WAVEGUIDES
MATERIALS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
QUASI PARTICLES