公开(公告)号：DE69228422T2

公开(公告)日：1999-09-30

申请号：DE69228422

申请日：1992-11-24

Applicant: IBM

Inventor： CLAUBERG ROLF ,  HARDER CHRISTOPH ,  HEUSCH CHRISTIAN ,  JAECKEL HEINZ

IPC: G02B6/122 ,  G01C19/66 ,  G02B6/125 ,  G02B6/24 ,  H01S3/00 ,  H01S3/083 ,  H01S5/00 ,  H01S5/026 ,  H01S5/10 ,  G02F1/095 ,  G02B6/12

Abstract: Optical waveguide isolator (121) for monolithic integration with semiconductor light emitting diodes such as Fabry-Perot or ring laser diodes. The present optical isolator (121), with optical input port (95) and output port (96), comprises a branching waveguide coupler (56). This branching waveguide coupler (56) has a waveguide stem (60) splitted at one end into two waveguide branches (57,58) such that a light wave fed via said input port (95) into a first of these branches (58), is guided via the waveguide stem (60) and the output port (96) out of the device. A light wave fed to the isolator's output port (96) is guided along the stem (60) and coupled into the second waveguide branch (57) to the absorber (54).