Waveguide , the optical waveguide module using a method of manufacturing the optical waveguide and the optical waveguide .

摘要

PROBLEM TO BE SOLVED: To provide an optical waveguide in which the occurrence of a dent or a distortion when performing cutting work of the optical waveguide made of a low-modulus material can be suppressed and a value of light propagation loss, particularly mirror reflection loss, is reduced by suppressing cutting trace generated on a cutting surface, and to provide a method for manufacturing the optical waveguide and an optical waveguide module with the optical waveguide.;SOLUTION: An optical waveguide includes a core layer and a clad layer made of resin having an elastic modulus of 300 MPa or less, and at least the core layer is laminated on the clad layer. The core layer or the core layer and the clad layer have a cutting surface formed by performing cutting work with a circular rotary blade having multiple non-cutting blade parts and multiple cutting blade parts on the outer circumference thereof. A ratio of the sum of length of the multiple non-cutting blade parts to the sum of length of the multiple cutting blade parts in an outer circumference direction of the circular rotary blade (the sum of length of the non-cutting blade parts/the sum of length of the cutting blade parts) is within the range of 1/8 to 2/3.;COPYRIGHT: (C)2012,JPO&INPIT