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

Calculate the stator input current, Q. Calculate the stator input current? ...

Q. Calculate the stator input current? The parameters of the equivalent circuit shown in Figure for a three-phase, wye-connected, 220-V, 10-hp, 60-Hz, six-pole induction motor

What do you mean by output voltage swing, Q. What do you mean by Output Vol...

Q. What do you mean by Output Voltage Swing? Ideally this is equal to the difference between the two supply rail voltages, although in practice it is a few volts less.

Signal processing 1 ., region of convergence of (Z+2)*(12z-1)/((3z-1)*(4z+1...

region of convergence of (Z+2)*(12z-1)/((3z-1)*(4z+1 ))

Simplified operation on transistor, Simplified operation: Figu...

Simplified operation: Figure: Simple circuit to show the labels of a bipolar transistor. The essential value of a transistor comes from its capability to make use

Circuit theory, i want circuit theory relavant assingment sir please immed...

i want circuit theory relavant assingment sir please immediately

Wye-delta transformation., what is the literature review about wye delta tr...

what is the literature review about wye delta transformation?? for 3 paragraphs atleast*

Why 8085 processor is called an 8 bit processor, 8085 processor has 8 bit A...

8085 processor has 8 bit ALU (Arithmetic Logic Review). Likewise 8086 processor has 16 bit ALU.

Where does cpu enhanced mode originate from, Intel's 80386 was the first 32...

Intel's 80386 was the first 32-bit processor, and as the company had to backward-support the 8086. All the modern Intel-based processors run in the improved mode, capable of switch

Masking - immediate with accumulator instruction , Masking As we know...

Masking As we know the MASJ is used  to cover  some part  of our  face  which  we want to hide  and to  show  other part of the face  which  we want to show. Similarly  the

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