Compared with the conventional polymer electro-optic modulator using prism coupling technique, the novel modulator is more compact and easier to be integrated.

• 与传统的棱镜耦合方式的聚合物电光调制器相比，自由空间耦合技术的引入使此类电光调制器结构更加紧凑、更易于阵列化集成。