Determine a normalized frequency at 820nm, Electrical Engineering

Assignment Help:

Determine a normalized frequency at 820nm for a step index fibre having 25µm core radius. Given n1=1.48 and n2=1.46.Also calculate how several modes propagate within this fibre at 820nm.

      Normalized frequency,

              f = c/λ

Substituting c=3 x 108 m/s

                    Λ= 820nm

             f = 3.658 x 1014 Hz

Given  n1=1.48

            n2=1.46

            r = 25µm

We have

                 V= Πd (n12- n22)½  / λ                                                            

     Substituting the values, we get

         V=46.45

Take V=46

No. of modes= V2/2 =462/2 = 1058


Related Discussions:- Determine a normalized frequency at 820nm

Smallest unit of information on a machine, Q. Smallest unit of information ...

Q. Smallest unit of information on a machine? Short for the binary digit the smallest unit of information on a machine. This term was first used in 1946 by the John Tukey, a le

Show that any periodic signal is not typically energy type, (a) Evaluate wh...

(a) Evaluate whether the sinusoidal signal x(t) = A cos (2πf 0 t + θ) is an energy-type or a power-type signal. (b) Show that any periodic signal is not typically energy type, a

Calculate the rms voltage generated in each phase, Q. Consider an elementar...

Q. Consider an elementary three-phase, four-pole alternator with a wye-connected armature winding, consisting of full-pitch concentrated coils.  Each phase coil has three turns,

What do you mean by blocking probability, Q. What do you mean by Blocking P...

Q. What do you mean by Blocking Probability? Blocking Probability:Blocking probability P is defined as probability that all the servers in system are busy. When all servers are

There are many advantages of plc - stepper motor , There are many advantage...

There are many advantages of PLC a.The PLC  was specifically designed for harsh  conditions with  electrical  noise magnetic fields vibration  extreme temperatures or humidit

Show the dot convention, Q. For the coupled coils shown in Figure, a dot ha...

Q. For the coupled coils shown in Figure, a dot has been arbitrarily assigned to a terminal as indicated. Following the dot convention presented in the text, place the other dot in

Draw a labeled block diagram of the encoder, Question: (a) The convers...

Question: (a) The conversion of a time varying analog audio signal into digital form is carried out using an electronic circuit known as a (signal) encoder. Draw a labeled bl

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