LIU YONGZHI. Analysis of deflecting characteristics for the deflection gratings on planar optical waveguide[J]. Acta Optica Sinica, 1987, 7(5): 430
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The angular and frequency characteristics of deflection gratings on planar optical waveguide are discussed through evaluting the deflection efficiencies R obtained from the coupled mode equation. The analysis shows that these propertie in principle depend on the product | K | · L of the length L and the coupling coefficient |K| between incident and deflecting waves, rather than | K | or L individually.