Patent ID: 8073300

Claim:
An arrangement comprising a fiber-optic waveguide and a detection device, wherein the fiber-optic waveguide comprises a core region and a cladding region surrounding the core region, wherein the core region has a higher refractive index than the cladding region, wherein the detection device is adapted to detect damage to the fiber-optic waveguide, wherein the fiber-optic waveguide has a first end and a second end, wherein a converter material is present at the second end, wherein the converter material converts radiation having a first wavelength that is transported through the fiber-optic waveguide into light having a second wavelength, and a first detector as part of the detection device is present at the first end, wherein the first detector detects the light having the second wavelength, and wherein a reflection layer is fitted at the second end between the converter material and the fiber-optic waveguide, wherein the reflection layer is transparent to the radiation having the first wavelength and reflects part of the light having the second wavelength.