JNTUH B.Tech 4th year (4-1) Optical Communications gives you detail information of Optical Communications (Elective – II) R13 syllabus It will be help full to understand you complete curriculum of the year.
Course Objectives
The objectives of the course are:
- To realize the significance of optical fibre communications.
- To understand the construction and characteristics of optical fibru cable.
- To develop the knowledge of optical signal sources and powoer launching.
- To identify and understand the operation of various optical detectors
- To understand the design of optical systems and WDM.
UNIT -I
Overview of Optical Fiber Communication: – Historical development, Tho general system, Advantages of Optical Fiber Communications, Optical Fiber Wave Guides- Introduction, Ray Theory Transmission, Total Internal Reflection, Acceptance Angle, Numerical Aperture, Skew Rays, Cylindrical Fibers- Modes, Vnumber, Mode Coupling, Step Index Fibers, Graded Index Fibers. Single Mode Fibers- Cut Off Wavelength, Mode Field Diameter, Effectivo Refractive Index, Fiber Materials Glass, Halide, Active Glass, Chalgenide Glass, Plastic Optical Fibers.
UNIT – II
Signal Distortion in Optical Fibers: Attenuation, Absorption, Scattering and Bending Losses, Core and Cladding Losses, Information Capacity Determination, Group Delay, Types of Dispersion – Material Dispersion, Wave- Guide Dispersion, Polarization Mode Dispersion, Intermodal Dispersion, Pulse Broadening, Optical Fiber Connectors- Connector Types, Single Modo Fiber Connectors, Connector Return Loss.
UNIT -III
Fiber Splicing: Splicing Techniques, Splicing Single Mode Fibers, Fiber Alignment and Joint Loss- Multimode Fiber Joints, Single Mode Fiber Joints, Optical Sources- LEDs, Structures, Materials, Quantum Efficiency, Power, Modulation, Power Bandwidth Product, Injection Laser Diodes- Modes, Threshold Conditions, External Quantum Efficiency, Laser Diode Rato Equations, Resonant Frequencies, Reliability of LED & ILD. Source to Fiber Power Launching: – Output Patterns, Power Coupling, Power Launching, Equilibrium Numerical Aperture, Laser Diode to Fiber Coupling.
TEXT BOOKS
- Optical Fiber Communications — Gerd Keiser, TMH, 4th Edition, 2008.
- Optical Fiber Communications — John M. Senior, Pearson Education, 3rd Edition, 2009.
REFERENCE BOOKS
- Fiber Optic Communications — D.K. Mynbaev, S.C. Gupta and Lowell L. Schemer, Pearson Education, 2005.
- Text Book on Optical Fibre Communication and its Applications — S.C.Gupta, PHI, 2005.
- Fiber Optic Communication Systems — Govind P. Agarwal , John Wiley, 3rd Edition, 2004.
- Introduction to Fiber Optics by Donald J.Sterling Jr. — Cengage learning, 2004.
- Optical Communication Systems — John Gowar, 2nd Edition, PHI, 2001.
Course Outcomes
At the end of the course, the student will be able to
- Understand and analyze the constructional parameters of optical fibres.
- Be able to design an optical system.
- Estimate the losses due to attenuation, absorption, scattering and bending.
- Compare various optical detectors and choose suitable one for different applications.
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