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

Briefly explain about wheatstone bridge, Q. Briefly explain about Wheatston...

Q. Briefly explain about Wheatstone Bridge? Null measurements are made with bridge circuits and related configurations. They differ from direct measurements in that the quantit

Explain the cmp instruction, Explain the CMP instruction . CMP: The comp...

Explain the CMP instruction . CMP: The comparison instruction is a subtraction which changes only the flag bits; the destination operand certainly not changes. A comparison is h

Explain protected mode interrupt, Explain protected mode interrupt. In...

Explain protected mode interrupt. In this mode, interrupts have exactly similar assignments as in real mode, but the interrupt vector table is not same. In place of interrupt

What do you mean by oscilloscope, Q. What do you mean by Oscilloscope? ...

Q. What do you mean by Oscilloscope? To measure time-varying signals (voltages and currents), an instrument known as an oscilloscope is employed. It can be used as a practical

Three phase transformer., Dry type 10KVA-3ph-440/230v Dyn11. If we decide t...

Dry type 10KVA-3ph-440/230v Dyn11. If we decide to wound above such specification, what current to be taken i.e. phase current or line current 7.57A or 13.12A

Find the fourier-series expansion of the pulse train, The rectangular pulse...

The rectangular pulse train of Figure (a) consists of pulses of height A and duration D. Such pulse trains are employed for timing purposes and to represent digital information. Fo

Find the per-unit voltage regulation, Q. A single-phase, 3-kVA, 220:110-V, ...

Q. A single-phase, 3-kVA, 220:110-V, 60-Hz transformer has a high-voltage winding resistance of 0.3 , a low-voltage winding resistance of 0.06 , a leakage reactance of 0.8  on i

Find the hysteresis loss in watts, Q. A sample of iron having a volume of 2...

Q. A sample of iron having a volume of 20 cm is subjected to a magnetizing force varying sinusoidally at a frequency of 400 Hz. The area of the hysteresis loop is found to be 80 cm

Compute the pull on the plunger, Q. A sectional view of a cylindrical iron-...

Q. A sectional view of a cylindrical iron-clad plunger magnet is shown in figure. The small air gap between the sides of the plunger and the iron shell is uniform and 0.25 mm long.

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