1992•IEEE Journal of Quantum ElectronicsRequires access

Application of the finite-difference vector beam propagation method to directional coupler devices

Wei‐Ping Huang, Chuang Xu, S.K. Chaudhuri

Abstract

The finite-difference vector beam propagation method (FD-VBPM) is applied to optical guided-wave devices based on two-dimensional directional couplers. The FD-VBPM is first validated for a parallel coupler made of two identical step-index slab waveguides by comparing with the exact analytical solutions. Subsequently, the polarization beamsplitters and wavelength filters based on directional couplers are simulated. The polarization properties of these devices are examined.>

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Key concepts: Beam propagation method, Power dividers and directional couplers, Polarization (electrochemistry), Optics, Hybrid coupler, Refractive index, Finite difference method, Physics