FIBRE OPTICS AND LASER INSTRUMENTS Question paper Nov/Dec 2010


B.E/B.Tech Degree Examination November/December 2010, 
Seventh Semester, 
Electrical and Electronics Engineering, 
EI1001-FIBRE OPTICS AND LASER INSTRUMENTS

Answer all the questions.


Part-A

(10*2=20)
1. State the advantages of optic fibre.
2. What is acceptance angle?
3. Mention the applications of fibre optic sensor.
4. Define Moire fringes.
5. What are the properties of LASER?
6. What is cavity damping?
7. What is LASER heating?
8. Define Vaporization.
9. What are holographic components?
10. List the medical applications of LASER.

Part-B
(5*16=80)
11.(a)(i) Explain step and Graded index fibre. (8)
(ii) Write a note on intrinsic and extrinsic absorption. (8)
Or
11.(b)(i)Discuss linear and non-linear scattering. (8)
(ii) Explain the characteristics of optical sources and detectors. (8)

12.(a)(i) Describe the fibre optic instrumentation system for the measurement of strain. (8)
(ii) Explain different types of modulators used in fiber optic instrumentation system. (8)
Or
12.(b)(i) Explain the principle of interferometric method of measurement of length. (8)
(ii) Explain the method of measurement of temperature using fibre optic sensors. (8)

13.(a)(i) Describe LASER modes. (8)
(ii) Explain Q-switching and Mode locking. (8)
Or
13.(b) With neat diagram explain the working of liquid and semiconductor laser. (8+8)

14.(a) Describe the method for the measurement of 
(i) Acceleration and
(ii) Current
Or
14.(b) Explain the industrial application of LASER in material processing. (16)

15.(a)(i) Discuss holography for non-destructive testing. (8)
(ii) Describe the LASER instruments for surgery and removal of tumors of vocal cards. (8)
Or
15.(b)(i) Explain holography in detail. (8)
(ii) Explain the medical applications of LASER in gynecology and oncology. (8)

10 comments:

  1. I agree with a lot of the points you made in this article. If you are looking for the Fibre Service Providers, then visit Accelerit Premium Fibre. I appreciate the work you have put into this and hope you continue writing on this subject.



    ReplyDelete
  2. The material is cured under controlled conditions, controlled for heat, pressure, and vacuum. Whether prepreg layups or wet layups are used, pressure and vacuum produce a better laminate. Both help to improve resin flow, but vacuum draws out the trapped air, resulting in a low void content. Heat accelerates curing. carbon fibre mold release agent

    ReplyDelete
  3. Gangaur Realtech is a professionally managed organisation specializing in real estate services where integrated services are provided by professionals to its clients seeking increased value by owning, occupying or investing in real estate. Laryngoscope

    ReplyDelete
  4. This comment has been removed by the author.

    ReplyDelete
  5. This comment has been removed by the author.

    ReplyDelete
  6. This comment has been removed by the author.

    ReplyDelete
  7. I recently came across your blog and have been reading along. I thought I would leave my first comment. I don’t know what to say except that I have enjoyed reading. https://visualaidscentre.com/lasik-eye-surgery/

    ReplyDelete
  8. So it is interesting and very good written and see what they think about other people. best doctor for lasik surgery in delhi

    ReplyDelete
  9. A devoted server hosting account is where you have a whole web server that main you get to utilize and you don't need to impart anything to some other site pages.
    https://onohosting.com/

    ReplyDelete
  10. Flaunting my lorgnette is like carrying a piece of history in the palm of my hand. Best Under $100 Binoculars

    ReplyDelete