Sorry, you need to enable JavaScript to visit this website.

  • 4:00 PM, Sunday, 26 Sep 2021

Course Postgraduate
Semester Sem. I
Subject Code PH614
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 modulators

Text Books

Same as Reference

  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 Mc Graw Hill, 1995
  7. Optoelectronics - an Introduction – Wilson and Hawkes, Prentice Hall, 1998