Loss due to inherent traits within the fiber; for example, absorption, scattering, and Splice loss.
Absorption is Light Energy is absorbed in the glass, or more specifically, the removal of light by non-reradiating collisions with the atomic structure of the optical core.
Scattering is the removal of light due to light being “scattered” after colliding with a variation in the atomic structure.
Splice Loss is a mismatched numberical aperature.
Intrinsic loss can be caused by impure molecules from processing issues, pure, but rare molecules, or impurity intentionally introduced during processing (doping).
Learn more about Extrinsic Loss.