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Submit Papers đŠM.Sc. IVth Semester (CBCS) Examination, 2021
Electronics
Paper - ET-403
Fiber Optics and Laser Physics
Note :- All questions from each section carry equal marks. All questions are compulsory and answer limit are approximately 250 words. Start the answer of each section from new page. Maximum limit of pages of answer booklet are approximately 16 pages. Answer should be written by the student in his/her own handwriting mandatory. The first page of answersheet should be download by the student from university website is mandatory.
Discuss basic principle of light guiding through optical fibers. Differentiate between step index and graded index fibers.
Explain working of a LED.
Explain various pumping schemes in lasers.
Discuss various line broadening mechanisms in a laser.
Which medium will be classified as active medium? Give your answer with supporting logic.