EC8751 OC Important Questions

Anna University Regulation 2017 ECE EC8751 OC Important Questions with Answer Key and ECE 7th Sem EC8751 OPTICAL COMMUNICATION Engineering Answer Key is listed down for students to make perfect utilization and score maximum marks with our study materials.

EC8751 OC OPTICAL COMMUNICATION

1. A point sorce of ligth is 12 cm below the surface of a large body of water (n = 1.33). What is the radius of the largest circle on the water surface through which the light can emerge?
2. Consider a parabolic index waveguide with n1 =1.75 ,n2 = 1.677 and core radius 25 micro meter. Calculate the numerical aperture at the axis and at a point 20 micro meter from the axis
3. Define numerical aperture of a step index fiber
4. Define mode-field diameter
5. Commonly available single mode fibers have beat lengths in the range 10 cm < Lp <2 m . What range of refractive index diffrences does this correspond to? (for wavelength = 1300 nm)
6. Define mode field diameter
7. What is the fundamental parameter of a single mode fiber?
8. A step index fiber has a normalized frequency V = 26.6 at 1300 nm wavelength. If the core radius is 25 pm, find the numerical aperture

Part-B
9. (i) Diacuss the signal distortion in single mode fibers
(ii) Discuss pulse broadening in graded index fibers with necessary equations
10. (I) Discuss the propagation modes in single -mode fiber
(ii) Discuss the structure of graded index fiber
11. (i) What is meant by ‘material dispersion’? Derive its expression
12. (a) What are fiber modes? Explain mode theory for optical fibers in detail. Or (b) Compare Single mode fibers and Graded index fibers. Explain the requirements for fiber materials.

EC8751 OC All units Important Questions  Download Here

If you require any other notes/study materials, you can comment in the below section.

For EC8751 OC Previous Year Question Papers – Click here

For EC8751 OC Question Bank/2marks 16marks with answers – Click here

For EC8751 OC Lecture Handwritten Notes – Click here

Search Terms

EC8751 OC Important Questions

Anna University 7th Sem ECE OC Important Questions