Patent ID: 10509171

Abstract:
Disclosed is an optical fiber probe for an optical treatment including a core, to which incident light is guided, a cladding disposed to surround the core, a side surface divergence part connected to the core and configured to diverge the incident light guided to the core to a side surface of a cylindrical column, a diffusion layer disposed to surround the side surface divergence part, a distal end divergence part connected to the side surface divergence part, having a cylindrical shape, and configured to diverge the incident light guided to the side surface divergence part to the outside, and a coating layer disposed to surround the cladding and the diffusion layer and configured to seal the cladding and the diffusion layer, wherein the refractive index of the cladding is lower than the refractive index of the core, the refractive index of the diffusion layer is higher than the refractive index of the core, and the refractive index of the coating layer is higher than the refractive indices of the cladding and the diffusion layer.