All-optical diode action in asymmetric nonlinear photonic multilayers with perfect transmission resonances
- Department of Physics and Institute for Optical Sciences, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 1A7 (Canada)
- B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Pr. Nezalezhnasti 68, 220072 Minsk (Belarus)
Light propagation in asymmetric Kerr-nonlinear multilayers with perfect transmission resonances is theoretically investigated. It is found that hybrid Fabry-Perot-resonator-photonic-crystal structures of the type (BA){sup k}(AB){sup k}(AABB){sup m} exhibit both pronounced unidirectionality (due to strong spatial asymmetry of the resonant mode) and high transmission (due to the existence of a perfect transmission resonance). This results in nonlinear optical diode action with low reflection losses without need for a pumping beam or input pulse modulation. By slightly perturbing the perfect transmission resonance condition, the operating regime of the optical diode can be tuned, with a tradeoff between minimizing the reflection losses and maximizing the frequency bandwidth where unidirectional transmission exists. Optical diode action is demonstrated in direct numerical simulation, showing >92% transmittance in one direction and about 22% in the other. The effect of perfect transmission resonance restoration induced by nonlinearity was observed analytically and numerically. The proposed geometry is shown to have advantages over previously reported designs based on photonic quasicrystals.
- OSTI ID:
- 21537228
- Journal Information:
- Physical Review. A, Vol. 83, Issue 2; Other Information: DOI: 10.1103/PhysRevA.83.023818; (c) 2011 American Institute of Physics; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
ASYMMETRY
BEAMS
COMPUTERIZED SIMULATION
CRYSTAL STRUCTURE
FREQUENCY MODULATION
LAYERS
LIGHT TRANSMISSION
NONLINEAR PROBLEMS
OPTICAL PUMPING
PHOTONS
PULSES
REFLECTION
RESONANCE
RESONATORS
BOSONS
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
EQUIPMENT
MASSLESS PARTICLES
MODULATION
PUMPING
SIMULATION
TRANSMISSION