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

Evaluate circular aperture of receiving antenna, Q. A satellite radio trans...

Q. A satellite radio transmitter has P in = 3 W and G t = 30 dB. The receiving antenna has a circular aperture with radius r at the ground station 30,000 km away. Find r in meter

Not gate- introduction microprocessors , Normal 0 false fals...

Normal 0 false false false EN-IN X-NONE X-NONE

The relationship between cell and batteries, The relationship between cell ...

The relationship between cell and batteries  Generally, a cell delivers a certain voltage that is a function of what chemical reactions are taking place to generate the voltage

What is the function of 8254 programmable interval timer, What is the funct...

What is the function of 8254 Programmable Interval Timer? 8253 or 8254 Timer Description and Initialization PTI that is programmable Interval Timer/Counter) 8253

The octal butters 74ls244, The Octal Butters 74LS244 It has  two group ...

The Octal Butters 74LS244 It has  two group  of four  buffer with  no inverted tri state  output ,  controlled by  two active  low  enable lines  (1G and 2G)  as shown in figur

Discuss classification of conducting materials, Discuss classification of c...

Discuss classification of conducting materials into low resistivity and high resistivity materials. Conducting materials are categorized as low resistivity materials and high r

Properties of conductors and insulators, Properties of Conductors and Insul...

Properties of Conductors and Insulators: This unit provides the basic characteristics or properties of the most common materials which are classified as semiconductor, conduct

Convolution, how to use tabular method to solve convolution problems

how to use tabular method to solve convolution problems

Stack pointer, stack Pointer (SP) It is also a 16 bit  register and a  ...

stack Pointer (SP) It is also a 16 bit  register and a  memory  pointer similar to  program counter. It holds  the memory  address of the  top of the stack. Stack is a  part of

#title.Electrical Machine., ) Design a suitable double –layer lap winding f...

) Design a suitable double –layer lap winding for a 6-pole dc armature with 18 slots

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