Class Central is learner-supported. When you buy through links on our site, we may earn an affiliate commission.

Indian Institute of Technology Madras

Fiber Optic Communication Technology

Indian Institute of Technology Madras and NPTEL via Swayam


Limited-Time Offer: Up to 75% Off Coursera Plus!
7000+ certificate courses from Google, Microsoft, IBM, and many more.
FOCT is a graduate level course, intended to expose the students to the physical layer elements and seamlessly provide a transition from the physical layer issues to data link layer issues in optical communication systems and networks.INTENDED AUDIENCE : Any Interested LearnersPREREQUISITES :Signals and SystemsINDUSTRIES SUPPORT :Sterlite Technologies Ltd., Tejas Networks, BSNL - other Telecom companies, BEL


Week 1 : Motivation for fiber optic communication, Introduction to digital modulation, Overview of Optical Communication System
Week 2 : Optical Sources : LED - Working principle, Efficiency, Modulation bandwidth, Emission Pattern, Need for Laser Diodes, Resonator ConceptsWeek 3 : Optical Sources : Laser Diodes - Resonator, FSR, Q, Single Longitudinal Mode Lasers, Photon Lifetime, Semiconductor
Laser Rate equation, steady state solution, LI characteristics, Output power from laser, Modulation response of LD,ChirpWeek 4 : Optical Sources- Noise in Lasers- Relative Intensity Noise, Phase noise, Effect of noise on different modulation
schemes, External Modulation- generation of OOK, BPSK, QPSK and 16QAMWeek 5 : Optical Fibers - Attenuation in fibers, Modes of a step index fiber, b-V curves, Modal profilesWeek 6 : Optical Fibers- Dispersion in fibers, intermodal dispersion, material dispersion, waveguide dispersion, polarisation mode dispersionWeek 7 : Photo detectors- PIN and APD Detectors, Sources of Noise- shot noise, thermal noise, NEP, SNR, Heterodyne detectors, SNR in heterodyne detectionWeek 8 : Optical Link Design - Performance Evaluation of an OOK link- BER, Q, Receiver Sensitivity, Optical Amplifiers- EDFAWeek 9 : Optical Link Design Link Budget, Case Studies, Dispersion COmpensation, Nonlinear Effects- Self Phase ModulationWeek 10 : Nonlinear effects - Cross Phase Modulation, Four Wave Mixing, Stimulated Raman and Brillouin Scattering, Commonly used components in Optical NetworksWeek 11 : Coherent Detection and DSP : Balanced Detection, Phase and Polarisation Diverse Coherent Detection, Digital Signal Processing for compensation of phase noise, frequency offset, chromatic dispersion, polarisation mode dispersionWeek 12 : Optical Networks : SDH/SONET Layering, Frame Structure , Physical network topologies, Access Networks- PON ,Optical Interconnects, Data Centers ,Optical communication for Wireless Fronthauling.

Taught by

Prof. Deepa Venkitesh



Start your review of Fiber Optic Communication Technology

Never Stop Learning.

Get personalized course recommendations, track subjects and courses with reminders, and more.

Someone learning on their laptop while sitting on the floor.