US Patent 8226304 Optical transceiver with partition plate between TOSA and ROSA

An SFP transceiver with two subassemblies each having an optical coupling member with a polygonal cross section is disclosed. The polygonal cross section has a flat surface facing the flat surface of the other subassembly. Between flat surfaces is put with a metal partition plate that comes in contact with a metal frame and a metal cover of the transceiver. Two sub-assemblies are electrically shielded by the partition plate, and the polygonal cross section of the subassembly makes the total width of the two assemblies added with the thickness of the partition plate minimum.