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

Define the principle of a moving coil galvanometer, (a) With the help of a ...

(a) With the help of a labelled diagram, define the principle and working of a moving coil galvanometer. (b) Two parallel coaxial circular coils of equal radius 'R' and equal nu

Determine expression for the bound ray, A symmetric, multimode slab wavegui...

A symmetric, multimode slab waveguide has a core width 2ρ, a uniform cladding index n cl and a linear, graded-index profile n(x) in the core that is continuous and symmetric about

Calculate the photon fluence rate, The photon fluence rate is 10 7 photons...

The photon fluence rate is 10 7 photons mm -2 sec -1 for a beam of γ rays. One fourth of the photons have energies of 100 keV, one half have energies of 80 keV and the remaining

What is henrys the inductance of the coil, A circular coil has a 12.8cm rad...

A circular coil has a 12.8cm radius and consists of 29.0 closely wound turns of wire. An externally produced magnetic field of magnitude 2.23 mT is perpendicular to the coil. (a) i

Explain circular and orbital motion, Explain Circular and Orbital Motion ...

Explain Circular and Orbital Motion Let's start by looking at circular motion with constant speed. Can there be acceleration in this problem? Yes, velocity includes speed and

Determine the vertical reaction, The boom DF and the column DE have a unifo...

The boom DF and the column DE have a uniform weight of P55 N/m and the chain and load at F is P56 kN.  Determine the Shear Force in kN rounded to 1 DP and the Bending Moment in kN.

Torque, how to find the direction of torque

how to find the direction of torque

Lights wave, composition of two simple harmonic vibrations acting at right ...

composition of two simple harmonic vibrations acting at right angles

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