abstract |
(57) [Problem] To significantly reduce the size of a semiconductor optical integrated circuit. SOLUTION: The present invention relates to a semiconductor optical integrated circuit 1 in which a semiconductor crystal is used as a substrate 2 and various optical elements are integrated. , The ferromagnetic metals 3a, 3b bonded to the substrate 2 And an optical waveguide 4 (4a, 4b) formed inside the substrate 2 so as to pass through a region where the magnetic effect of the ferromagnetic metals 3a, 3b is exerted. |