公开(公告)号：US20030165295A1

公开(公告)日：2003-09-04

申请号：US10378411

申请日：2003-03-03

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Christopher Doerr

IPC: G02B006/26 ,  G02F001/035

CPC classification number: G02B6/29355 ,  G02F1/3132 ,  G02F2201/16

Abstract: A low-loss integrated optical coupler includes at least three substantially similar optical couplers, adjacent ones of the optical couplers interconnected via at least one set of waveguides, each of the sets of waveguides comprising a path-length difference between the waveguides therein. In one embodiment of the present invention, the multi-section optical coupler comprises at least two arms and the path-length differences are adjustable such that signals traversing the at least two arms undergo a relative phase shift, such that a desired output power splitting ratio for the multi-section optical coupler is achieved. Alternatively, the optical coupler is implemented in an inventive optical device that functions at least, as an optical switch or an optical splitter.

Abstract translation: 低损耗集成光耦合器包括至少三个基本上相似的光耦合器，通过至少一组波导互连的相邻光耦合器中的每一个波导组中的每一个包括其中的波导之间的路径长度差。 在本发明的一个实施例中，多段光耦合器包括至少两个臂，并且路径长度差是可调节的，使得穿过至少两个臂的信号经历相对相移，使得期望的输出功率分配比 实现了多段光耦合器。 或者，光耦合器实现在本发明的光学装置中，其至少用作光开关或光分路器。