installing optical cable joints or using optical instruments to test the end face of the
connection.
WARNING:
Avoid looking directly at the fiber output connector and always wear proper eye
protection to prevent injury.
CAUTION:
Performing any operation or adjustment outside the scope of this manual may result
in radiation-related injuries.
2. Secondary radiation hazard
During the welding process, both visible and invisible light radiation are generated.
The interaction between the high-power laser beam and the target material being
welded can result in the production of ultraviolet (UV) light and plasmas that emit
"blue light." These radiations can lead to various health issues, such as
conjunctivitis, photochemical damage to the retina, and sunburn-like reactions on
the skin.
Welders who are exposed to these invisible UV rays without appropriate safety
measures are at risk of incurring permanent eye damage. Even a short exposure
to the UV rays during welding can lead to symptoms like blurred vision, burning,
tearing, eye pain, and irritation — often described as a sensation similar to having
sand in the eye.
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