Patent ID: 6990264

Claim:
A method for fabricating an optical switch which switches an optical signal from an input port into any one of N output ports, the method comprising the steps of: providing a substrate; creating first and second movable platforms by a semiconductor process on the substrate, wherein the first and second movable platforms are arc-shapped and move relative to the substrate; creating a stationary platform on the substrate by a semiconductor process; forming first and second light guiding structures on the first movable platform; forming third and fourth light guiding structures on the second movable platform; forming a fifth light guiding structure on the stationary platform; wherein the position of the first movable platform determines whether the optical signal propagates through the first or second light guiding structures and the position of the second movable platform determines whether the optical signal propagates through the third or fourth light guiding structures, thereby creating an optical path from the input port to one of the N output ports.