The U.S. Army Corps of Engineers is organized geographically into eight permanent divisions, one provisional division, one provisional district, and one research command reporting directly to the HQ. Within each division, there are several districts.
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Introduction. Integrated optical devices fabricated in silicon-on-insulator (SOI) platform are highly polarization dependent [1] and [2] . Therefore, it is a usual practice to design devices to operate in either of the two polarizations (TE or TM).n this paper, we have shown how a metal coated rib waveguide structure could improve the polarization extinction of integrated optical device fabricated in SOI platform. At first, we have discussed the attenuation mechanism of TM polarized light in metal coated silicon rib waveguide structure in Section 2.