EC6702 OPTICAL COMMUNICATION AND NETWORKS MCQS 2013 REGULATION

February 18, 2021October 19, 2021 Qwerty Kumar

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EC6702 OPTICAL COMMUNICATION AND NETWORKS MCQS 2013 REGULATION

In this post we have posted some notes on EC6702 OPTICAL COMMUNICATION AND NETWORKS for ANNA UNIVERSITY AFFILIATED COLLEGES STUDENTS.

Here We have listed the the notes whichever we could collect for EC6702 OPTICAL COMMUNICATION AND NETWORKS subject, We think that it will be helpful for your exam preparation.

OBJECTIVES:

👉 To Facilitate the knowledge about optical fiber sources and transmission techniques

👉 To Enrich the idea of optical fiber networks algorithm such as SONET/SDH and optical CDMA.

👉 To Explore the trends of optical fiber measurement systems.

UNIT I INTRODUCTION TO OPTICAL FIBERS

Evolution of fiber optic system- Element of an Optical Fiber Transmission link– Total internal reflection-Acceptance angle –Numerical aperture – Skew rays Ray Optics-Optical Fiber Modes and Configurations -Mode theory of Circular Wave guides- Overview of Modes-Key Modal concepts-

Linearly Polarized Modes -Single Mode Fibers-Graded Index fiber structure.

UNIT II SIGNAL DEGRADATION OPTICAL FIBERS

Attenuation – Absorption losses, Scattering losses, Bending Losses, Core and Cladding losses, Signal Distortion in Optical Wave guides-Information Capacity determination -Group Delay-Material Dispersion, Wave guide Dispersion, Signal distortion in SM fibers-Polarization Mode dispersion,

Intermodal dispersion, Pulse Broadening in GI fibers-Mode Coupling -Design Optimization of SM fibers-RI profile and cut-off wavelength.

UNIT III FIBER OPTICAL SOURCES AND COUPLING

Direct and indirect Band gap materials-LED structures -Light source materials -Quantum efficiency and LED power, Modulation of a LED, lasers Diodes-Modes and Threshold condition -Rate equations

-External Quantum efficiency -Resonant frequencies -Laser Diodes, Temperature effects, Introduction to Quantum laser, Fiber amplifiers- Power Launching and coupling, Lencing schemes, Fiber -to- Fiber joints, Fiber splicing-Signal to Noise ratio , Detector response time.

UNIT IV FIBER OPTIC RECEIVER AND MEASUREMENTS

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 AND SYSTEM TRANSMISSION 9

Basic Networks – SONET / SDH – Broadcast – and –select WDM Networks –Wavelength Routed Networks – Non linear effects on Network performance –-Link Power budget -Rise time budget-Noise Effects on System Performance-Operational Principles of WDM Performance of WDM + EDFA system – Solutions – Optical CDMA – Ultra High Capacity Networks.

TOTAL: 45 PERIODS

OUTCOMES:

Upon completion of the course, students will be able to:

👉 Discuss the various optical fiber modes, configurations and various signal degradation factors associated with optical fiber.

👉 Explain the various optical sources and optical detectors and their use in the optical

communication system.

👉 Analyze the digital transmission and its associated parameters on system performance.

TEXT BOOKS:

1. Gerd Keiser, “Optical Fiber Communication” Mc Graw -Hill International, 4th Edition., 2010.

2. John M. Senior , “Optical Fiber Communication”, Second Edition, Pearson Education, 2007.

REFERENCES:

1. Ramaswami, Sivarajan and Sasaki “Optical Networks”, Morgan Kaufmann, 2009.

2. J.Senior, “Optical Communication, Principles and Practice”, Prentice Hall of India, 3rd Edition, 2008.

3. J.Gower, “Optical Communication System”, Prentice Hall of India, 2001.