Unit 1

Introduction – Characteristics of optical radiation, luminescence, irradiance – Optical Sources – Photo Detectors – Opto-couplers and their application in analog and digital devices. Optical Fiber Fundamentals – modes, types of optical fibers – fiber coupling – Fiber optic sensors for common industrial parameters – V, I, pressure, temperature – IR sources and detectors – fiber optic gyroscope.

Unit 2

Characteristics of LASERS – Einstein’s equations – population inversion two, three and four level system. Laser rate equation, properties – modes – Resonator configurations – Q switching and mode locking, cavity dumping, single frequency operation – Types of Lasers. Applications – Lasers for measurement of distance and length, velocity, acceleration, atmospheric effects, pollutants.

Unit 3

Material processing applications – Laser heating, melting, scribing, splicing, welding and trimming of materials, removal and vaporization.

Holographic Interferometry and Applications – Holography for non-destructive testing – medical applications – lasers and tissue interaction -surgery – dermatology.

• Wilson and Hawkes, “Opto Electronics-An Introduction”, Third Edition, Pearson Education, 1998.
• John Ready, “Industrial Applications of Lasers”, Second Edition, Academic Press, 1997.

• Bhattacharya P, “Semiconductor Optoelectronics”, Second Edition, Pearson Education, 1998.
• Djafar K. Mynbaev, Lowell L. Scheiner, “Fiber-Optic Communications Technology”, First Edition, Prentice Hall of India Pvt. Limited, 2000.
• R. P. Khare, “Fiber Optics and Optoelectronics”, Oxford Press, 2004.