Method of making an optical waveguide grating with two dissimila

Details Method of making an optical waveguide grating with two dissimila Method of making an optical waveguide grating with two dissimila

1997-04-14

1999-12-07

Hoffmann, John

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

Process of manufacturing optical fibers, waveguides, or...

65425, 430290, 430321, C03B 3710

Patent

active

059963751

ABSTRACT:
A method of producing an optical waveguide grating by exposure to light. An optical waveguide having a core composed of a material wherein the refractive index changes due to exposure to UV light is formed into an optical waveguide grating by applying a grating portion formation step wherein a grating portion is formed by irradiation with UV light at a predetermined spacing, and an overall exposure step after formation of the grating portion wherein the entire grating portion is irradiated with UV light. As a result, the effective refractive index of the grating portion is changed so as to allow the central wavelength to be adjusted without changing the rejection. Consequently, the grating properties can be precisely and easily controlled.

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