The Research About Components With The Method Of Bragg Gratings To Implement Free Space Optical Crossover Network

The research about free space optical iflterconnection arefocused on optical combined component such as lens array,polarization beam splitter to implement optical networks. These years,holograPhic technology (incIuding fOur-focus lens, computeringholograPhy, holograPhic grating )are wideIy used in butterfly. perfectshuffle network. ln this dissertation, Bragg grating are used toimPlemeflt l-D,2-D crossover network. A whole scheme is providedto make component in crossover network. The characteristic of thecomponent and the method of its improvement are also offered.