▎ 摘　　要

NOVELTY - Optical device structure comprises an optical fiber including a core unit (110), a clad unit (100), and a three-dimensional micro hole structure (H) in the clad unit, where surface of the three-dimensional micro hole structure is provided with at least a non-flat surface, a conformal graphene layer (120) is formed on the surface of the three-dimensional micro hole structure, and the conformal graphene layer is formed through nucleation and growth on a target base material surface by diffusion of carbon atoms generated through decomposition of a carbon precursor by a catalytic action on a non-metal layer. USE - Optical device structure. ADVANTAGE - The design of the three-dimensional micro hole structure allows for elongating a micro hole to a region adjacent to the optical fiber core, by allowing a wide range of modifications to depth control of the hole, it is possible to control the interaction between the laser and the graphene formed on the surface of the hole. The wide region of the first hole helps an etchant to be sufficiently delivered into a narrow hole to smoothly form the second hole having a high aspect ratio finally. The structure not only has a large opening for a synthesis process, but also has an effect of minimizing an unnecessary increase in dimensions due to wet etching. The distance from the micro hole which becomes shorter as an opening of a cavity becomes wider helps movement of the carbon atoms diffused in the micro hole structure, and thus growth of the graphene with higher quality is enabled. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of manufacturing an optical device structure. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic partial perspective view of an optical device. 100Clad unit 110Core unit 120Graphene layer HThree-dimensional micro hole structure