Y-branched optical waveguide and multi-stage optical power splitter using the same

摘要: A Y-branched optical waveguide with a uniform output characteristic for use in communication systems is disclosed. The waveguide, consisting of core section serving as transmission medium an signal and cladding surrounding the section, formed on semiconductor substrate. An input-tapered configured to receive through first ending second symmetrical structure respect centered line so that width extends more widely along line. pair output-tapered waveguides each are branched from which respectively extend downstream, asymmetrical line, respective extending