Photonic NetworkBy Dr. M H ZaidiNumerical Aperture (NA)What is numerical aperture (NA)? Numerical aperture is the measure of the lightgathering ability of optical fiberThe higher the NA, the larger the core of lightacceptance of the fiber and the easier it is to couple the light signal into the fiberAt the same time, the higher the numerical aperture, the lower the bandwidthThe two specifications must be balanced for optimum performance
Photonic NetworkBy Dr. M H ZaidiSpecifying numerical aperture62.5/125 ––0.275 +- 0.015 Numerical Aperture
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Photonic NetworkBy Dr. M H ZaidiIndex of RefractionC= 3 108meters per second, but it is reduced when it passes throughmatter. The index of refractionn:cnspeed of light in a vacuum, 3 108m/sspeed of light in the given materialf100nncf00wavelength of light in a vacuumwavelength of light in the given materialc00