A three-dimensional optical waveguide is formed by laminating planar substrates such as a plurality of lens substrates and, an isolator substrate and a wavelength division multiplexing filter, the optical substrates at least include a waveguide substrate having a waveguide and a reflecting surface. In...http://www.google.fr/patents/US7869671?utm_source=gb-gplus-shareBrevet US7869671 - Three-dimensional optical waveguide, method of manufacturing same, optical module, and optical transmission system
Three-dimensional optical waveguide, method of manufacturing same, optical ...
