A novel integrated-optic WDM cross-connect for wide area all optical networks

The authors propose a novel design for an integrated-optic wavelength-division-multiplexing (WDM) cross-connect that can be used in routing network applications at various wavelengths. The device is based on integrating a two-dimensional array of Bragg diffraction cells at cross points of input/output (I/O) coplanar waveguides. The wavelength tuning of the individual Bragg cells can be chosen to produce a WDM cross-connect with any number of required I/O interconnections. These cross-connects have proved extremely useful in the design and deployment of wide-area/nationwide all-optical networks.<
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