state the principle of fibre optics?.
Answers
Answer:
The working principle of optical fiber is the transmission of the information in the form of light atoms otherwise photons. The cores of the fiberglass & the cladding have a special refractive index to twist inward light at a particular angle.
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Answer:
An optical fiber can be understood as a dielectric waveguide, which operates at optical frequencies. The device or a tube, if bent or if terminated to radiate energy, is called a waveguide, in general. Following image depicts a bunch of fiber optic cables.
Explanation:
A fundamental optical parameter one should have an idea about, while studying fiber optics is Refractive index. By definition, “The ratio of the speed of light in a vacuum to that in matter is the index of refraction n of the material.” It is represented as −
$$n = \frac{c}{v}$$
Where,
c = the speed of light in free space = 3 × 108 m/s
v = the speed of light in di-electric or non-conducting material
Generally, for a travelling light ray, reflection takes place when n2 < n1 .
