Design of a Polymer Directional Coupler Electro-Optic Switch with Low Push-Pull Switching Voltage at 1550nm
1550nm低推挽电压聚合物定向耦合电光开关的设计

A polymer directional coupler(DC)electro-optic switch with push-pu ll electrodes and rib waveguides is designed based on the conformal transforming m ethod,image method,coupled mode theory,and electro-optic modulation theory.Its structure and principle are described,the design and optimization are perfor med,and the characteristics are analyzed,including the coupling length,switch ing voltage,output power,insertion loss,and crosstalk.To realize normal swit ching function,the fabrication tolerance,wavelength...