Patent ID: 8768122
Filing Date: 2014-07-01
Classification: G02B

Abstract:
1. An optical module comprising: a substrate having in a surface thereof at least one first groove and a second groove which has a substantially V-shaped cross section formed deeper than the first groove, and which is formed in continuation from the first groove; an internal waveguide which is provided within the first groove of the substrate, and which has a core and a cladding having a lower refractive index than the core, the opposite side faces of the core being covered with the cladding; a mirror portion for changing an optical path, provided at a front end of the first groove; an optical element mounted on the surface of the substrate so as to face the mirror portion, and designed to (i) emit an optical signal to a core of the internal waveguide via the mirror portion or (ii) receive an optical signal from the core of the internal waveguide via the mirror portion; and an optical fiber having a fiber cladding placed within the second groove and a fiber core optically connected to the core of the internal waveguide, wherein the width of the core of the internal waveguide is smaller than the width of the upper end of the first groove.