Patent ID: 6122430
Filing Date: 2000-09-19
Classification: C03C,G02B

Abstract:
An optical waveguide fiber grating substrate device for controlling optical properties of an optical waveguide fiber Bragg grating which vary with temperature, said optical waveguide fiber grating substrate having a negative coefficient of thermal expansion, said substrate defining an adhesive receiving recess, an adhesive, said adhesive received in said recess, wherein said optical waveguide fiber Bragg grating is attached with said adhesive and said recess provides a first force application location wherein the substrate applies a force to the optical waveguide fiber Bragg grating at the first force application location in order to control temperature varying optical properties of the optical waveguide fiber Bragg grating, wherein said substrate defines a second adhesive receiving recess which provides a second force application location for the optical waveguide fiber grating wherein the substrate further applies a force to the optical waveguide fiber grating at the second force application location in order to control temperature varying optical properties of the optical waveguide fiber grating.