Acta Optica Sinica, Volume. 24, Issue 4, 456(2004)
Analysis of Wide-Angle Crossed Waveguide by Wide-Angle Finite-Difference Beam Propagation Method Based on the Douglas Scheme
Crossing waveguide is an important unit in integrated optics. The generalized Douglas (GD) scheme for variable coefficients is applied to wide-angle multistep finite-difference beam propagation method (FD-BPM). Aiming at the structure and refractive-index profile of wide-angle cross waveguide, the optical field distribution has been calculated by the method. Compared with Crank-Nicholson (CN)scheme in the same computational time and resource, the method has two characteristics
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[in Chinese], [in Chinese], [in Chinese], [in Chinese]. Analysis of Wide-Angle Crossed Waveguide by Wide-Angle Finite-Difference Beam Propagation Method Based on the Douglas Scheme[J]. Acta Optica Sinica, 2004, 24(4): 456