Design of Low-Loss Polarization Splitting Grating Couplers

We report polarization splitting grating couplers on double-SOI substrates with loss below 2 dB, optimized polarization dependence and excellent manufacturability. We illustrate the optimization of the scatterers with electromagnetic simulations.

[1]  D. Taillaert,et al.  A compact two-dimensional grating coupler used as a polarization splitter , 2003, IEEE Photonics Technology Letters.

[2]  T Pinguet,et al.  A Grating-Coupler-Enabled CMOS Photonics Platform , 2011, IEEE Journal of Selected Topics in Quantum Electronics.

[3]  Mario J. Paniccia,et al.  Integrated Silicon Photonics: Harnessing the Data Explosion , 2011 .