Expression for the total bound electric field, Physics

Assignment Help:

A weakly guiding optical fibre propagates just two bound modes with scalar transverse electric fields ψ1(x,y) and ψ2(x,y), and propagation constants β1 and β2, respectively. At the beginning of the fibre, a source excites both modes with amplitudes a1 and a2, respectively. 

(a) Write down an algebraic expression for the total bound electric field anywhere along the fibre.

(b) This field repeats itself periodically along the fibre with a longitudinal period zb. By examining the expression for the accumulated phase difference between the 2 modes as they propagate determine zb in terms of the propagation constants of the two modes.

(c) Using the expression for the total field in (a), determine the total guided power in the fibre and confirm that it is equal to the sum of the powers in the 2 modes.


Related Discussions:- Expression for the total bound electric field

Explain vibratory and oscillatory motion, Vibratory and Oscillatory Motion ...

Vibratory and Oscillatory Motion : To and fro or back and forth motion of an object is known as vibratory and oscillatory motion.

Velocity time, when the body is uniform motion

when the body is uniform motion

Explain ohm''s law, OHM's Law: The current passing by a conductor is di...

OHM's Law: The current passing by a conductor is directly proportional to the potential difference applied across it's end given, the temperature and other physical conditions

Define the wave nature of sound, Define the Wave Nature of Sound Sound ...

Define the Wave Nature of Sound Sound is called a longitudinal wave because the vibrations are in the same direction as the motion and speed of the wave. This is most easily pi

Microscope, principle and working of compound microscope

principle and working of compound microscope

Explain gamma rays, Gamma Rays: The wave length of gamma rays is less t...

Gamma Rays: The wave length of gamma rays is less than 10-11 m.

Objective to exports, Objective After studying this unit, you should be ...

Objective After studying this unit, you should be able to: 1.  explain the importance of international trade; 2.  discuss why a fm is motivated to export; 3.  identify

Define about the bell jar, Define about the Bell Jar? A vessel with a s...

Define about the Bell Jar? A vessel with a small hole of diameter d in it is delegate inside a high-vacuum chamber. The pressure is so low that the signify free path λ>> d.

How a conductive wire resist current in it?, Due to drift velocity of elect...

Due to drift velocity of electrons and due to collision of electrons

Define ohm law, Define Ohm's Law Ohm's Law:  Relationship among the pot...

Define Ohm's Law Ohm's Law:  Relationship among the potential difference across an electric device and the current that runs by it.  V= I.R

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