Anti-evil environment fiber

- Sep 05, 2017 -

   Communication with the optical fiber working environment temperature can be -40 ~ +60 ℃ between the design is not subject to a large number of radiation exposure as the premise. 

    In contrast, for lower temperatures or higher temperatures and the ability to work under high temperatures due to high or external effects, exposure to radiation is known as the Hard Condition Resistant Fiber. Generally in order to mechanical protection of the fiber surface, coated with a layer of plastic. However, as the temperature increases, the plastic protection function has declined, resulting in the use of temperature is also limited. If you switch to heat-resistant plastic, such as polytetrafluoroethylene (Teflon) and other resins, you can work in the 300 ℃ environment. Also on the surface of quartz glass coated with nickel (Ni) and aluminum (Al) and other metals. This fiber is called Heat Resistant Fiber. In addition, when the fiber is exposed to radiation, the light loss increases. 

     This is because the quartz glass in the face of radiation exposure, the glass will appear structural defects (also known as color center: Colour Center), especially 0.4 ~ 0.7pm wavelength loss increases. The way to prevent this is to use a quartz glass doped with OH or F to suppress loss due to radiation. This fiber is called Radiation Resistant Fiber (Radiation Resistant Fiber), used for nuclear power plant monitoring fiber optic mirror.

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