公开(公告)号：US20040081389A1

公开(公告)日：2004-04-29

申请号：US10655769

申请日：2003-09-05

Applicant: FiBest. Ltd.

Inventor： Haruhisa Soda ,  Shigeru Nakagawa

IPC: G02B006/26

CPC classification number: G02F1/3133 ,  G02F2201/127

Abstract: A directional coupler type optical modulator with traveling-wave electrodes includes a first directional coupler region, a waveguide wave coupling region, a second directional coupler region, and a set of noncrossing traveling-wave electrodes disposed along the outside of the waveguides. The electrodes of each directional coupler are connected to the traveling-wave electrodes via air-bridges. The waveguide structures are of the P-I-N type having a common N-type conducting layer which provides delta-beta operation of the directional coupler, and both cross and bar states are controlled by a single input signal.

Abstract translation: 具有行波电极的定向耦合器型光调制器包括第一定向耦合器区域，波导管耦合区域，第二定向耦合器区域和沿着波导的外侧布置的一组非交叉行波电极。 每个定向耦合器的电极通过气桥连接到行波电极。 波导结构是具有公共N型导电层的P-I-N型，其提供定向耦合器的delta-β操作，并且交叉和条状态都由单个输入信号控制。