| 摘要 |
This optical fiber device is provided with: at least one optical fiber having a first surface on which first light and second light that has a wavelength different from the wavelength of the first light are incident; and a detection unit which detects the second light. The optical fiber is provided with a reflection unit, which transmits the first light and reflects the second light, on a second surface. The detection unit detects the second light that is reflected by the reflection unit and discharged from the first surface. |
