Question

which of the following is described by the concept of numerical aperture in sn optical fiber​

Answer 1

The Numerical Aperture (NA) of a fiber is defined as the sine of the largest angle an incident ray can have for total internal reflectance in the core. Rays launched outside the angle specified by a fiber's NA will excite radiation modes of the fiber. A higher core index, with respect to the cladding, means larger NA.

Answer 2

The concept of numerical aperture in sn optical fibre is :

• In Optics, the numerical aperture (NA) of the system detects a random number indicating the range of angles at which the system can receive or emit light.

• The numerical hole in the event of a fibre optical connection can be defined as-

• "The capacity to collect light optical fibre".
• The number hole provides an important relationship between the reception angle and the refractive index of the core and the hat.

• The numerical hole is a measure of the receiving angle of fibre.

• It also provides the ability to collect fibre light.

• With single mode fibre, the theme is a constant refractive indicator.

• There are no differences in context.