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1. Before connecting the Raman pigtail, please turn off the power of the Raman amplifier; 2. Before connecting the Raman pigtail, you need to ensure that the end face of the pigtail is clean. There are many inspection tools and instruments for optical fiber end faces, among which the fiber optic microscope is the most widely used professional inspection instrument.
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Raman amplifier port. If the fiber core is contaminated, you can use fiber wiping paper to clean the end face and connect it to the Raman amplifier port only after it is wiped clean; if the fiber core is damaged, you need to replace the fiber.
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