Fibre optics, Electrical Engineering

Assignment Help:
1. A very narrow laser beam in air is shone into a sphere of solid glass that has a uniform
refractive index n>1 and radius ? . The beam makes an angle a in air with the normal to
the surface of the sphere.
Sketch the path of the beam in the circular cross-section of the sphere defined by the
normal and the beam direction, and show all reflected and transmitted rays.
Explain why the beam cannot become a bound whispering gallery ray propagating around
the inside the glass-air surface of the sphere.
2. An asymmetric, multimode, step-profile slab waveguide has a core index of 1.49. The
cladding index above the core has value 1.47 and the cladding index below the core has
value 1.48. Rays propagate in the core in the x-z plane and make an angle ?z relative to
the z-axis along the centre of the waveguide.
(a) Determine the range of (positive) values of ?z in degrees for which only bound rays
will propagate along the waveguide.
(b) How many different types of rays can propagate along the waveguide?
Sketch a typical path for each type of ray.
(c) Determine the values of ?z in degrees that delineate between the 3 types of ray paths.

Related Discussions:- Fibre optics

#titleclipper diode.., Ask quedisadvantages stion #Minimum 100 words accept...

Ask quedisadvantages stion #Minimum 100 words accepted#

Discuss need of pipelining, Discuss need of Pipelining. The simplest m...

Discuss need of Pipelining. The simplest method for improving performance by hardware parallelism is pipelining. Pipelining has breaking up the operations to be performed in s

Define the x-nor or exclusive-nor gate, Define the X-NOR or Exclusive-NOR G...

Define the X-NOR or Exclusive-NOR Gate?   This is the EX-OR gate with the output inverted, as shown by the 'o' on the output and the output Q is true if inputs A and B a

Find the corresponding energy, Q. Consider a pair of coupled coils as shown...

Q. Consider a pair of coupled coils as shown in Figure of the text, with currents, voltages, and polarity dots as indicated. Show that the mutual inductance is L 12 = L 21 = M by

Efficiency of shunt geranerator, A 100kw,230v,dc shunt generator,with Ra=0....

A 100kw,230v,dc shunt generator,with Ra=0.05,and Rf=57.5 has no load rotational loss(friction,wandage,core loss)of 1.8kw.compute a) The generator efficiency at full load.

Overcoming power shortages, Overcoming power shortages: NEP aims at me...

Overcoming power shortages: NEP aims at meeting both energy and peak demand fully through 2012 along within creating 5 percent spinning reserves at national level. The policy

What do you understand by detroit-type automation, (a) What do you understa...

(a) What do you understand by Detroit-type automation? (b) What are the situations under which the above kind of automation can be planned ?

Honer, Can I have formulas for calculation of 50TN seting on 33KV overhead ...

Can I have formulas for calculation of 50TN seting on 33KV overhead line

Show how a 16-to-1 multiplexer implement the logic function, Q. Show how a ...

Q. Show how a 16-to-1 multiplexer can be used to implement the logic function described by the following truth table.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd