Wellenleiter-Schaltmatrix

DE 3344490 A UPAB: 19930925 Waveguide circuit matrix has electrically controlled, cascaded, integrated optical circuit elements, in which the waveguide leading to monomode fibre terminals spreads into the input and output region of the matrix run inside a circuit element, closely adjacent to one another and decoupled from one another between longitudinally adjacent circuit elements. The novelty is that it has a cascade of length n.x and width m.y in the matrix, which is built up of two basic types of rectangular waveguide cells, packed directly on one another, of which: those of basic type (A) are waveguide circuit elements with length x and width y and have optically insulated etched grooves on their long sides and the waveguides are y/2 apart at the sides of this cell and y/4 from the middle axis; and those of the other basic type (B) are monomode waveguide composite elements with length x and width y/2 and have optically insulated etched grooves on their long sides and run straight along the middle axis of the cell. USE/ADVANTAGE - The integration density can be higher than usual. 3/