Patent ID: 7945169

Claim:
An optical transceiver for converting between a plural optical signals each having a specific wavelength different from each other and a plural electrical signals each corresponding to one of optical signals, the transceiver comprising: an optical unit including a plurality of wavelength selective filters and a plurality of optical subassemblies, each wavelength selective filters transmitting one of optical signals having the specific wavelength, each subassemblies facing one of wavelength selective filters; a substrate that installs an electronic circuit thereon which is electrically connected to each of the optical subassemblies; and a flexible printed circuit board that electrically connects each of the optical subassemblies to the substrate, the flexible printed circuit board including a plurality of branches, an unified portion, and a center portion with a polygonal shape tracing an outer shape of the optical unit, each of the branches extending from each of edges of the polygonal shape and being connected to one of the optical subassemblies, the unified portion extending from one of the edges of the polygonal shape not extending the branches and being connected to the substrate, wherein the center portion of the flexible printed circuit board is bonded to the optical unit so as to trace the polygonal shape of the center portion of the flexible printed circuit board with an outer shape of the optical unit.