EC2402 OPTICAL COMMUNICATION AND NETWORKING

EC2402 OPTICAL COMMUNICATION AND NETWORKING L T P C

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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.