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  • 2:59 PM, Sunday, 24 Oct 2021

Course Dual Degree (B. Tech + M.S / M.Tech)
Semester Sem. VII
Subject Code PH414
Subject Title Lasers and Optoelectronics


Quantum Theory of Atomic Energy Levels – Radiative and Nonradiative decay of excited state atoms
–Emission Broadening and linewidth – Radiation and Thermal equilibrium – Conditions for laser action
–Laser Oscillation above threshold - Laser Amplifiers – Requirements for obtaining population inversion
–Rate Equations for three and four level systems – Laser pumping requirements – Laser Cavity modes
–Stable resonators – Gaussian beams– Special Laser Cavities – Q-switching and Mode locking –Generation
of ultra fast Optical pulses– Pulse compression.
Atomic Gas Lasers – He-Ne, Argon ion, He-Cd — Molecular Gas Lasers – CO2, Excimer, Nitrogen—X-Ray
Plasma Laser — Free-Electron Laser — Organic Dye lasers — Solid-state lasers – Ruby, Nd:YAG,
Alexandrite, Ti:Sapphire.
Electronic and Optical properties of semiconductors– electron-hole pair formation, PN Junction,diffusion,
injection efficiency, quantum efficiency, homojunction and heterojunction, Excitation absorption,
donor-acceptor and impurity band absorption, LED, Semiconductor lasers, Heterojunction Lasers, quantum
well lasers, VCSEL, DFB and DBR Lasers.
Detection of Optical radiations – Basic Principle, Thermal detectors, Photo multipliers, photoconductive
detectors, Photo diodes, Avalanche photodiodes, CCDs, Image Intensifiers, Arrays, Solar Cells, noise considerations.
Optoelectronic Modulators – Basic principle, Birefringence, Optical Activity, EO, AO and MO Effects and

Text Books

1. Laser Fundamentals – W.T. Silfvast, Second Edition, Cambridge University Press, 2004

2. Principles of Lasers – O. Svelto, Fourth edition, Springer, 1998

3. Photonics: Optical Electronics in Modern Communications – A. Yariv and P. Yeh, Sixth Edition,

4. Oxford University Press, 2007

5. Semiconductor Optoelectronic devices – Pallab Bhattacharya, Prentice Hall of India, 1995

6. Semiconductor Optoelectronics – Jasprit Singh, Tata McGraw Hill, 1995

7. Optoelectronics - an Introduction – Wilson and Hawkes, Prentice Hall, 1998


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