Applied Optics (Practical)

Published on Physics (https://physics.iisuniv.ac.in)

Applied Optics (Practical) [1]

Paper Code:

25SPHY601

Credits:

Contact Hours:

60.00

Max. Marks:

100.00

Objective:

To understand the 'nature of light' is a favourite 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:

Course

Learning outcome

(at course level)

Learning and teaching strategies

Assessment Strategies

Course Code

Course Title

25SPHY601

Applied Optics (Practical)

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

CO2: Discuss the various applications of laser.

CO3: Apply the knowledge of lasers in different fields.

CO4: Analyze the results from plane diffraction grating and LED experiment.

CO5: Analyze the results from solid state laser, LDR & photovoltaic cell.

CO6: Contribute effectively in Course specific interaction.

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

12.00

Unit I:

LASER physics

Basic Principle of Laser, Einstein Coefficients, condition for light amplification , Population Inversion, Optical Resonators , Three level and four level systems.

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.

12.00

Unit II:

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.

12.00

Unit III:

Practical Exercise-I

To determine the grating radial spacing of the Compact Disc (CD) by reflection using He-Ne or solid state laser.
To find the width of the wire or width of the slit using diffraction pattern obtained by a He-Ne or solid state laser.

12.00

Unit IV:

Practical Exercise-II

To find the polarization angle of laser light using polarizer and analyzer.
To determine the wavelength and angular spread of laser light by using plane diffraction grating.
To study I-V characteristics of LED.

12.00

Unit V:

Practical Exercise-III

To Study the characteristics of solid state laser.
To Study the characteristics of LDR.
To study the Characteristics of Photovoltaic Cell.

Essential Readings:

“LASERS: Fundamentals & applications, K.Thyagrajan & A.K.Ghatak, 2010, Tata McGraw Hill
“An Introduction to laser: Theory and Applications” by M. N. Avadhanulu, S. Chand and Co., New Delhi 2011.
“Introduction to Fiber optics” by K. Thyagarajan and Ajoy Ghatak, Cambridge University, 2010.
“Optical Fiber communications” by John M. Senior, Cambridge University Press, 1996.

References:

“Fiber-Optic communication systems”, Govind P. Agrawal, John-Willey & Sons.
“ Fibre optics through experiments”, M.R.Shenoy, S.K.Khijwania, et.al. 2009, Viva Books.
“ Optical Electronics”, Ajoy Ghatak and K. Thyagarajan, 2011, Cambridge University Press.

E-Content:

· https://archive.nptel.ac.in/courses/115/107/115107131/ [2]

Academic Year:

2025-2026 [3]

Source URL: https://physics.iisuniv.ac.in/courses/subjects/applied-optics-practical-1

Links:
[1] https://physics.iisuniv.ac.in/courses/subjects/applied-optics-practical-1
[2] https://archive.nptel.ac.in/courses/115/107/115107131/
[3] https://physics.iisuniv.ac.in/academic-year/2025-2026

Applied Optics (Practical) [1]

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