Applied Optics (Skill Enhancement Course Theory)

Paper Code: 
SPHY 601
Credits: 
02
Contact Hours: 
30.00
Max. Marks: 
100.00
Objective: 

Course Objectives:

This course will enable the students to –

 The quest to understand the 'nature of light' is a favorite inquiry of mankind since ancient

times. By the advent of lasers, holography, and optical fibres in twentieth century the optics now-a-days finds application in several branches of science and engineering. This paper provides the conceptual understanding of these branches of modern optics to the students.

 

Course Outcomes (COs):

Course

Learning outcome

(at course level)

Learning and teaching strategies

Assessment Strategies

Paper Code

Paper Title

   SPHY 601

Applied Optics (Theory)

The students will be able to –

 

CO1: understand the principle of Laser and differentiate between three and four level laser.

CO2: compare different types of Lasers.

 

CO3: Apply the knowledge of lasers in different fields and develop the concept of holography

 

CO4: Learn about optical fibers and analyse intermodal dispersion.

 

CO5: apply the knowledge

of optical fibers to develop a a optical communication system..

Approach in teaching:

Interactive Lectures, Discussion, Tutorials, Power point presentation,Problem Solving in tutorials, guest lectures

 

Learning activities for the students:

Self learning assignments, Effective questions, Seminar presentation, Solving numericals

Class test, Semester end examinations, Quiz, Solving problems ,Assignments,Presentations

 

 

6.00
Unit I: 
LASER physics
Basic Principle of Laser, Einstein Coefficients , condition for light amplification , Population Inversion,  Optical Resonators , Three level and four level systems. 
 
6.00
Unit II: 
Types of LASER and output modulation methods
Solid State lasers - Ruby and Nd-YAG Laser , Gas lasers - He-Ne and CO2 lasers,  semiconductor lasers - Heterojunction lasers , Liquid Dye lasers 
 
6.00
Unit III: 
Applications of LASER
Application of laser in industry - cutting and welding , Drilling , surface Hardening , Medical applications - laser as diagnostic and therapeutic tool , Holography - Theory of recording and reconstruction, applications of Holography. 
 
6.00
Unit IV: 
Optic fibers

Fiber optic revolution , basic characteristics of optical fiber , acceptance angle, numerical aperture , propagation of light through optical fiber,- theory of mode formation , classification of fibers , step index and graded index fibers , single mode and multi mode fibers -,losses in fibers -,fabrication techniques of fibers. 

6.00
Unit V: 
Fiber optic communication

Source and detectors for fiber optic communication - Laser and LED, Analog and digital modulation methods , Principle of optical detection , pin and APD photodetectors , Noise, Design consideration of a fiber optic communication system. 

References: 
1.“LASERS: Fundamentals & applications, K.Thyagrajan  & A.K.Ghatak, 2010, Tata  McGraw Hill
2.“An Introduction to laser: Theory and Applications” by M. N. Avadhanulu, S. Chand and Co., New Delhi 2011. 
3.“Introduction to Fiber optics” by K. Thyagarajan and Ajoy Ghatak, Cambridge University, 2010. 
4.“Optical Fiber communications” by John M. Senior, Cambridge University Press, 1996 
5.“Fiber-Optic communication systems”, Govind P. Agrawal, John-Willey & Sons, 
6.  “ Fibre optics through experiments”, M.R.Shenoy, S.K.Khijwania, et.al. 2009, Viva Books
7.“ Optical Electronics”, Ajoy Ghatak and K. Thyagarajan, 2011, Cambridge University Press
 
 
 
Academic Year: 
2023-2024
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