What Is Fiber-Optic Polishing?

The damage caused to the environment and people during the production and use of optical fiber. For example, silica powder and debris generated when grinding and polishing quartz optical fibers may harm the respiratory system and eyes; flame-resistant cables may cause skin damage; laser beams at the output end of optical fibers may cause eye damage. Prevent these injuries with glove goggles and a mask.

Optical fiber hazard refers to the damage caused to the environment and personnel during the production and use of optical fiber. The water and gas discharged during the purification of optical fiber materials are toxic and pollute the environment. Optical fibers must be polished and ground during the production of active or passive components. The scattered and flying dust can harm people's respiratory system and eyes. The outer sheath of optical cables is volatile. The emitted plastic gas can also harm people's respiratory system and skin. When the optical fiber cable is in the light guiding working state, the light beam emitted from the end face may burn the eyeball. ^[1]

Fiber Hazard Fiber Fatigue

The phenomenon that the strength of an optical fiber decreases with time under external stress. Under the action of external force, the fiber breaks because the internal crack size reaches a certain level. The external force causes the crack size to increase with time, and the time required from the application of the external force to the fracture depends on the characteristics of the fiber, the external environment, and especially the magnitude of the external force. The main characteristics of optical fiber fatigue are: the fatigue phenomenon is very small under vacuum and low temperature conditions; quartz glass has good water resistance, and its fatigue phenomenon is also small.

Optical fiber hazard fiber attenuation measurement

The process of measuring the total loss that light experiences in fiber transmission. It is the most common measurement parameter for fiber measurement. There are three main measurement methods: shear method, backscatter method and insertion method. CCITT recommends that the shear method be used as the benchmark for attenuation measurement. Insertion and backscattering are used as alternative methods. Because the shear measurement is more accurate but destructive, it is mainly used in scientific research and factory measurement. The backscatter method uses the Rayleigh scattering principle of the optical fiber, which can directly see the change of the attenuation of the optical fiber along the line and the location of the optical fiber failure point, so it is mainly used in optical fiber installation engineering and optical fiber line maintenance.