An optical component is formed on a silicon on insulator (SOI) substrate and has an array waveguide that demultiplexes an input light signal into N channels and provides that light signal to a corresponding set of N waveguide structures formed on a surface of the SOI substrate. The N waveguide structures...http://www.google.de/patents/US6594409?utm_source=gb-gplus-sharePatent US6594409 - WDM transmitter or receiver including an array waveguide grating and active optical elements
