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

Emi, #quest explain cro..

#quest explain cro..

Counter-controlled analog to digital converter, Q. Counter-controlled analo...

Q. Counter-controlled analog to digital converter? Figure shows the block diagram of a counter-controlledA/Dconverter. Resetting the binary counter to zero produces D/A output

Explain what is linker, Explain what is Linker? Linker: A huge progra...

Explain what is Linker? Linker: A huge program is divided in smaller programs termed as modules. A linker is a program that links smaller programs together to by a large prog

Logically and the contents of memory, Logically AND the contents of memory ...

Logically AND the contents of memory Contents of memory  location,  whose address is specified by HL register pair are logically AND with the  contents  of the accumulator. The

Calculate the thermal velocity of an electron, Question: a) Describe t...

Question: a) Describe two mechanisms by which electrons can be excited from the valence band to the conduction band? b) Given that the direct-band gap energy for Gallium N

Competition and non-conventional energy, Competition and Non-conventional e...

Competition and Non-conventional energy: Competition: The tariff policy bolsters competition through making it mandatory for a distribution licensee to procure power by

Generator, On which principle the generator works?

On which principle the generator works?

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