Patent ID: 7236660

Claim:
An apparatus comprising: a plurality of optical ports including an input optical port for receiving an optical signal with a plurality of wavelength channels, and a plurality of output ports; for each optical port, a respective waveguide dispersive element optically connected to the optical port, the dispersive elements integrated on a same waveguide device in a first plane; a bulk optical element having optical power; a plurality of non-transmissive routing elements; wherein the dispersive element of the input port disperses each of the wavelength channels at a different respective exiting angle dependent upon wavelength, wherein the bulk optical element redirects each one of the wavelength channels at a respective angle towards a respective one of said plurality of routing elements, and wherein said plurality of routing elements directs each of the wavelength channels via the bulk optical element to a selected output port in the first plane via the respective dispersive element of the selected output at a respective angle of incidence dependent upon the selected output port.