The single most important safety rule you will ever learn is to never look directly into the end of a fiber optic cable or connector. If you are using a microscope, which can efficiently focus all the light into your eye, it should have infrared filters. Besides the usual safety issues for construction, generally covered under OSHA rules (OSHA 10 and 30), fiber optics adds concerns for eye safety, chemicals, sparks from fusion splicing, disposal of fiber shards and more. To prevent eye injuries, you need to follow some basic safety precautions and standards when handling, installing, or testing optical fibers. The light used in fiber optic systems is invisible to the human eye, so you have no. The light used to transmit data is typically in the infrared (IR) spectrum, making it invisible to the human eye.
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