Course Details

Subject {L-T-P / C} : EE6147 : Optical Communication {3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. K. Ratna Subhashini


Introduction to optical communication: Characteristics of optical transmission media, optical fibres- preparation and transmission characteristics, loss and dispersion mechanisms Optical sources: principles of operation, modulation characteristics and driver circuits,LED, laser diodes, light source linearity, modal, and partition and reflection noise Power Launching and Coupling:Source to fibre power launching, lensing schemes for coupling improvement, fibre to fibre joints, couplers, multiplexers and splicesPhoto detectors: principles of operation, circuits and performance,preamplifiers and post-detection amplifiers Optical Fiber systems: intensitymodulation/direct detection system, link budget using direct detection, coherent system,wavelength converters,coherent and WDM systems,Photonic switching.

Course Objectives

  1. To learn the basic elements of optical fiber transmission link, fiber modes configurations
    To understand the different kind of losses, signal distortion in optical wave guides and other signal degradation factors
    To equip the students with basic skills required to understand and design such systems.

Course Outcomes

After completing this course the students should be able to:
Understand fiber optic concept to information transmission. Identify the elements of an optical fiber transmission link.Understand optical fiber structure, wave guiding and fabrication.Calculate and simulate the attenuation and signal degradation due to intermodal and intramodal distortion.Understand the structure, the performance and the signal analysis of optical sources. Understand the structure, the performance and signal analysis of optical detectors. Calculate power coupling losses due to connectors, splices, source output pattern and fiber numerical aperture.Design optimum single mode and multimode fiber link.Design and analyze optical receivers.

Essential Reading

  1. . G.Keiser, Optical Fibre Communications, McGraw Hill,5th Edition 2017.
  2. J.M. Senior, , Optical Fiber Communications: Principles and Practice, PHI,3 rd Edition 2009.

Supplementary Reading

  1. . Jones, W.B. Jones,, Introduction to Optical Fiber Communications Systems, , Oxford University Press, 1995.
  2. J.C. Palais, Fiber optic communication, , 5th edition, Prentice Hall, 2004.