The Coupling Between Forward Propagating Wave and Backward Propagating Wave for P>hotorefractive Surface Waves

The Coupling Between Forward Propagating Wave and Backward Propagating Wave for P>hotorefractive Surface Waves

The coupling between forward propagating wave and backward propagating wave of photorefractive surface waves (PR SWs) along the surface of photorefractive crystals (PRC) with periodic corrugations is studied for the first time. The influences of depth and period number of periodical corrugation stru...

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Veröffentlicht in:IEEE journal of quantum electronics 2009-02, Vol.45 (2), p.132-137
Hauptverfasser: Zhang, T.H., Zhang, L.Z., Yu, X.Y., He, R., Hu, Z.J., Xu, J.J.
Format: Artikel
Sprache:eng
Schlagworte:
Backward propagating wave
Corrugated surfaces
Corrugating
coupled-mode theory
Couplings
Crystals
Joining
Mathematical analysis
Optical design
Optical propagation
Optical surface waves
Partial response channels
Photorefractive materials
photorefractive nonlinearity
Propagation
Reflectivity
Surface waves
Wave propagation
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Beschreibung
Zusammenfassung:The coupling between forward propagating wave and backward propagating wave of photorefractive surface waves (PR SWs) along the surface of photorefractive crystals (PRC) with periodic corrugations is studied for the first time. The influences of depth and period number of periodical corrugation structures on the coupling between the forward propagating PR SW and backward propagating PR SW are discussed. Especially the influence of nonlinearity on the coupling is studied for the first time. The reflectivity and transmissivity of PR SWs are calculated numerically using coupled-mode theory. The results are significant for the design of integrated optical device utilizing photorefractive surface waves.
ISSN:0018-9197
1558-1713
DOI:10.1109/JQE.2008.2002097