EC2402 OPTICAL COMMUNICATION AND NETWORKING

EC2402 OPTICAL COMMUNICATION AND NETWORKING L T P C
3 0 0 3
UNIT I INTRODUCTION 9
Introduction
Numerical aperture – Skew rays – Electromagnetic mode theory of optical propagation –
EM waves – modes in Planar guide – phase and group velocity – cylindrical fibers –
SM fibers.
, Ray theory transmission- Total internal reflection-Acceptance angle –
UNIT II TRANSMISSION CHARACTERISTICS OF OPTICAL FIBERS 9
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 connectors – Expanded Beam Connectors – Fiber Couplers.
, Fiber alignment and Joint Losses – Fiber Splices

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 Attenuation 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.
TOTAL= 45 PERIODS
TEXT BOOKS:
1. Optical Fiber Communication – John M. Senior – Pearson Education – Second
Edition.
2007
2. Optical Fiber Communication – Gerd Keiser – Mc Graw Hill – Third Edition.
REFERENCES:
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.
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