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arXiv · 1504.02964

Optimized 3D simulation method for modeling of out-of-plane radiation in silicon photonic integrated circuits

W. J. Westerveld·H. P. Urbach·M. Yousefi
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Abstract

We present an accurate and fast 3D simulation scheme for out-of-plane grating couplers, based on two dimensional rigorous (finite difference time domain) grating simulations, the effective index method (EIM), and the Rayleigh-Sommerfeld diffraction formula. In comparison with full 3D FDTD simulations, the rms difference in electric field is below 5% and the difference in power flux is below 3%. A grating coupler for coupling from a silicon-on-insulator photonic integrated circuit to an optical fiber positioned 0.1 mm above the circuit is designed as example.

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W. J. Westerveld, H. P. Urbach, M. Yousefi. 2015-04-12. Optimized 3D simulation method for modeling of out-of-plane radiation in silicon photonic integrated circuits. https://doi.org/10.1109/jqe.2010.2099645

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