Patent ID: 11965732
Assignee: TOUCHNETIX LIMITED
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. A method of fabricating laminated material comprising:
providing two or more ply layers arranged in a stack according to an intended configuration for a laminated material;
inserting between an adjacent pair of the ply layers a strain sensor comprising a first planar optical waveguide and a second planar optical waveguide, each of the first planar optical waveguide and the second planar optical waveguide having a waveguiding core defining an optical propagation direction parallel to the plane of the laminated material and a Bragg grating in the waveguiding core, and cladding around the waveguiding core, the optical propagation direction of the first planar optical waveguide being non-parallel to the optical propagation direction of the second planar waveguide, and each of the first planar optical waveguide and the second planar optical waveguide having a thickness and a width being orthogonal dimensions perpendicular to the optical propagation direction and the width being at least an order of magnitude larger than the thickness; and
bonding the ply layers together to form the intended configuration for the laminated material with the strain sensor embedded within.