Refractive index contrast, in an optical fiber, is Refractive index contrast a measure of the relative difference in refractive index of the core and cladding.
Note: Refractive index contrast, Δ, is given by Δ = (n 12- n 22)/(2n 12), where n 1 is the maximum refractive index in the core and n 2 is the refractive index of the homogeneous cladding.
Source: from Federal Standard 1037C and from MIL-STD-188
Electronics Topics
The field of electronics is the study and use of systems that operate by controlling the flow of electrons or other electrically charged particles in devices such as thermionic valves and semiconductors. The design and construction of electronic circuits to solve practical problems is part of the fields of electronic engineering, and the hardware design side of computer engineering. The study of new semiconductor devices and their technology is sometimes considered as a branch of physics.
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