Method and apparatus for free-space optical switching

Christopher R Doerr (Inventor), Dan Mark Marom (Inventor)

Research output: Patent


An apparatus and method are provided for manipulating light beams propagated through PLCs in free space. Light beams propagated in through an input/output waveguide of a PLC are propagated through a waveguide array to generate a phased array output at an edge facet of the PLC. The phased array output at the edge facet is spatially Fourier transformed by a lens in free space, generating a spectrally resolved image at the back focal plane of the lens. The spectrally resolved image is reflected, at least in part, by a reflector device and coupled into a desired waveguide array of a PLC to produce a desired output.

Original languageAmerican English
Patent numberUS2005185878
IPCG02B 6/ 35 A I
Priority date31/08/04
StatePublished - 25 Aug 2005


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