EC2402 OPTICAL COMMUNICATION AND NETWORKING Syllabus 7th Semester ECE - Anna University

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·    To introducthe  various optical fiber modes, configurations and various signal degradation factors associated with optical fiber.

·    To study about various optical sources and optical detectors and their use in the optical communication system. Finally to discuss about digital transmission and its associated parameters on system performance.


·      To learn the basic elements of optical fiber transmission link, fiber modes configurations and structures.
·      To understand the different kind of losses, signal distortion in optical wave guides and other signal degradation factors. Design optimization of SM fibers, RI profile and cut-off wave length.
·      To learn the various optical source materials, LED structures, quantum efficiency, Laser diodes and different fiber amplifiers.
·         To learn the fiber optical receivers such as PIN APD diodes, noise performance in photo detector, receiver operation and configuration.
·         To learn fiber slicing and connectors, noise effects on system performance, operational principles WDM and solutions.

UNIT  I            INTRODUCTION                                                                                       9
Introduction, Ra theor transmission- Total internal reflection-Acceptance angle
Numerical aperture Skew rays Electromagnetic mode theory of optical propagation EM    waves modes in Planar  guide phase  and group velocity cylindrical fibers SM fibers.


Attenuation Material absorption losses in silica glass fibers Linear and Non linear Scattering losses - Fiber Bend losses Midband and  farband  infra red transmission Intra and inter Modal Dispersion Over all Fiber Dispersion Polarization- non linear Phenomena. Optical fiber connectors, Fiber alignment and Joint Losses Fiber Splices
Fiber connectors Expanded Beam Connectors Fiber Couplers.

UNIT III           SOURCES AND DETECTORS                                                                 9
Optical sources: Light Emitting Diodes - LED structures - surface and edge emitters, mono and hetero structures - internal - quantum efficiency, injection laser diode structures - comparison of LED and ILD

Optical Detectors: PIN Photo detectors, Avalanche photo diodes, construction, characteristics and properties, Comparison of performance, Photo detector  noise -Noise sources , Signal to Noise ratio , Detector response time.

UNIT IV          FIBER OPTIC RECEIVER AND MEASUREMENTS                                9
Fundamental receiver operation, Pre amplifiers, Error sources Receiver Configuration
Probability of Error – Quantum limit.

Fiber Attenuatio measurements- Dispersion measurements Fiber Refractive index profile measurements Fiber cut- off Wave length Measurements Fiber Numerical Aperture Measurements Fiber diameter measurements.

UNIT V           OPTICAL NETWORKS                                                                             9
Basic Networks SONET / SDH Broadcast and select WDM Networks Wavelength Routed Networks – Non linear effects on Network performance Performance of WDM + EDFA system Solitons – Optical CDMA Ultra High Capacity Networks.
1.   Optical Fiber Communication John M. Senior – Pearson Education Second
Edition. 2007
2.   Optical Fiber Communication Gerd Keiser – Mc Graw Hill – Third Edition. 2000

1.    J.Gower, Optical Communication System”, Prentice Hall of India, 2001
2.    Rajiv Ramaswami, Optical Networks , Second Edition, Elsevier , 2004.
3.    Govind P. Agrawal, “ Fiber-optic communication systems, third edition, John Wiley
&  sons, 2004.
4.    R.P. Khare, Fiber Optics and Optoelectronics, Oxford University Press, 2007.

By Vinoth
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