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

What happen when negative bias applied to the gate of fet, Q. What happens ...

Q. What happens when a negative bias is applied to the gate of a FET? The result of applying a negative bias to the gate is to reach the saturation level at a lower level of V

Diodes, How does a diode work! what is its main formulas?

How does a diode work! what is its main formulas?

Logic circuits, : A farmer owns two barns; one north of a creek and the oth...

: A farmer owns two barns; one north of a creek and the other south of the creek. The farmer has a Cabbage, a Goat, and a Wolf. The Farmer needs to put each item in a barn every ni

Explain the working of rectifier circuits, Q. Explain the working of Rectif...

Q. Explain the working of Rectifier Circuits? A simple half-wave rectifier using an ideal diode is shown in Figure(a). The sinusoidal source voltage v S is shown in Figure (b)

Quartus, I have a project due tomorrow, i have exhuasted all my resources, ...

I have a project due tomorrow, i have exhuasted all my resources, and cannot understand how to do the project, it is VHDL coding in Quartus program, i can send the assignment if yo

Draw a block diagram of a 4-bit pipo register, Q. Draw a block diagram of a...

Q. Draw a block diagram of a 4-bit PIPO register and briefly describe its operation. Q. Taking parallel data from a computer to be fed out over a single transmission line needs

Matlab, what is the future scope of matlab in india?

what is the future scope of matlab in india?

Compute the terminal voltage and current of each generator, Q. Three dc gen...

Q. Three dc generators are operating in parallel with excitations such that their external characteristics are almost straight lines over the working range with the following pairs

Determine rc and resistance, Q. A silicon npn BJT is biased by the method s...

Q. A silicon npn BJT is biased by the method shown in Figure, with R E = 240 , R 2 = 3000 , and V CC = 24 V. The operating point corresponds to V BEQ = 0.8V, I BQ = 110 µA,

Explain the operation of the counter, Q. Figure shows the mod-8 counter whi...

Q. Figure shows the mod-8 counter which counts from 010 to 710 before resetting. Explain the operation of the counter and sketch the timing diagram.

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