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3 terms
Photonics Dictionary: I
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fiber core x
I x
index dip
The decrease in the refractive index at the center of a fiber's core, caused by certain fabrication techniques. Also called profile dip.
index-matching material
A material, often a liquid or cement, whose refractive index is nearly equal to the fiber's core index, used to reduce Fresnel reflection from a fiber end face.
intrinsic joint loss
Loss intrinsic to the fiber caused by parameter (core dimension, profile parameter) mismatches when two nonidentical fibers are joined.
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