Hydroxyl ion absorption is the absorption in optical fibers of electromagnetic waves, including the near-infrared, due to the presence of trapped hydroxyl ions remaining from water as a contaminant.
The hydroxyl (OH-) ion can penetrate glass during or after product fabrication, resulting in significant attenuation of discrete optical wavelengths, e.g., centred at 1.383 μm, used for communications via optical fibres.
Famous quotes containing the word absorption:
“The great social adventure of America is no longer the conquest of the wilderness but the absorption of fifty different peoples.”
—Walter Lippmann (1889–1974)