Course Content
Introduction to vector nature of light, propagation of light, propagation of light in a cylindrical dielectric rod, Ray model, wave model. Different types of optical fibers, Modal analysis of a step index fiber. Signal degradation on optical fiber due to dispersion and attenuation. Fabrication of fibers and measurement techniques like OTDR. Optical sources - LEDs and Lasers, Photo-detectors - pin-detectors, detector responsivity, noise, optical receivers. Optical link design - BER calculation, quantum limit, power panelities. Optical switches - coupled mode analysis of directional couplers, electro-optic switches. Nonlinear effects in fiber optic links. Concept of self-phase modulation, group velocity dispersion and solition based communication. Optical amplifiers - EDFA, Raman amplifier, and WDM systems.
Text / References
- 1 J.Keiser, Fibre Optic communication, McGraw-Hill, 2nd Ed. 1992.J.E. Midwinter, Optical fibers for transmission, John Wiley, 1979.T. Tamir, Integrated optics, (Topics in Applied Physics Vol.7), Springer-Verlag, 1975.J.Gowar, Optical communication systems, Prentice Hall India, 1987.S.E. Miller and A.G. Chynoweth, eds., Optical fibres telecommunications, Academic Press, 1979. G.Agrawal, Nonlinear fibre optics, Academic Press, 2nd Ed. 1994.G. Agrawal, Fiber optic Communication Systems, John Wiley and sons, New York, 1992F.C. Allard, Fiber Optics Handbook for engineers and scientists, McGraw Hill, New York (1990).