explain how a ray of light can guide inside of a graded-index fiber
optic, and compare...
explain how a ray of light can guide inside of a graded-index fiber
optic, and compare and contrast this with how a light ray is guided
inside of a step-index fiber
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Imagine that you have three graded index fiber cables which are
connected to each other in series. The refractive indices of the
core/clad for each fiber is 1.57/1.50, 1.68/1.46 and 1.77/1.68, and
the lengths of the fibers are 5, 8, and 2 km, respectively. What
are the time dispersion, maximum bit-rate and frequency bandwidth
of each fiber?
Compare a wireless radio system with a fiber-optic communication
system for digital data communications over a distance of 1 km.
Assume a desired data rate of 75 Mbps. Give pros and cons,
advantages and disadvantages of each. Which one would be better,
all factors being considered?
how the attenuation affects the maximum fiber length of
communication links. Also explain how the index of refraction
parameters or the type of fiber (step vs graded) affect the maximum
data rate. Finally explain is the data rate a direct function of
the intrinsic fiber attenuation?
A light ray strikes the perfectly smooth boundary between two
different materials. The index of refraction of the material before
the boundary is lower than that of the material after the boundary.
On the basis of this information, the light ray will be
a. partially transmitted in a direction deviating more from the
normal and partially reflected.
b. partially transmitted in a direction deviating less from the
normal and partially reflected.
c. partially transmitted exactly in the same direction and...
A light ray passes through a rectangular slab of transparent
material having index of refraction n=2, as shown in the
figure (Figure 1). The incident angle is θo=50.0∘.
a) Determine θa.
Express your answer in degrees to two significant figures.
b)Determine θb.
Express your answer in degrees to two significant figures.
c) Determine θc.
Express your answer in degrees to two significant figures.
d) What is the relationship between the directions of the
incident ray and the emerging ray?
describe the effect of light in pigments inside rods, how light
affects the polarization of photoreceptors, and how that affects
the bipolar cells and ganglionic cells
Explain in your own words why light is trapped in an optical
fiber.
Describe at least two cases where you have observed the effects
of light refraction besides the case of a swimming pool. Use
examples from your own life.
Why the fabrication of optical fiber is a very delicate
process?
What do you understand is the "Dispersion" effect in
communication fibers