An integrated optical waveguide circuit includes a substrate; an optical wavelength multiplexer and an optical power splitter formed on a same surface of the substrate. The optical wavelength multiplexer is composed of a first slab optical waveguide, a second slab optical waveguide, a single or a plurality...http://www.google.fr/patents/US5546483?utm_source=gb-gplus-shareBrevet US5546483 - Integrated optical waveguide circuit and optical branch line test system using the same
Integrated optical waveguide circuit and optical branch line test system ...
