Integrated optical modulator including a waveguide and inclination segmented electrodes

摘要

(57) an optical modulator having an electrode structure which is divided into segments of the small dimensions of the relatively [Abstract] plurality are described. These segments are connected via a transmission line and a coupling wire of the microwave circuit board on adjacent. By including the waveguide pair of inclined, for example, the optical modulator results in a non-parallel waveguide structure to reduce the sound effects, such as ripple. By realizing the electrode structure with small dimensions plurality of segments, a high sensitivity is achieved as compared with the case of using an elongated electrode structure of a single one. For example a combination of the segmented electrode and the non-parallel waveguide provides a flat frequency response and a relatively large to beyond 1GHz. The above electrode structure, and is designed to minimize the effective capacitance of the electrode structure, and expanding the bandwidth of the optical modulator of the present invention as compared to the device by this, with a solid electrode.