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Fiber Optic Communications Fundamentals and Purposes by Shiva Kumar and M. Jamal Deen
MAIN CONTENTS OF Fiber Optic Communications Fundamentals and Purposes eBook
– Electromagnetics and Optics.
– Optical Fiber Transmission.
– Optical Modulators and Modulation Schemes.
– Optical Receivers.
– Optical Amplifiers.
– Transmission System Design.
– Efficiency Evaluation.
– Channel Multiplexing Strategies.
– Nonlinear Results in Fibers.
– Digital Sign Processing.
PREFACE TO Fiber Optic Communications Fundamentals and Purposes eBook
The sphere of fiber-optic communications has superior considerably over the past three many years. Within the early days, many of the fiber’s usable bandwidth was considerably under-utilized because the transmission capability was fairly low and therefore,
there was no want to use methods developed in non-optical communication programs to enhance the spectral effectivity. Nevertheless, with the current revival of coherent detection, excessive spectral effectivity may be realized utilizing superior modulation codecs.
This e-book grew out of our notes for undergraduate and graduate programs on fiber-optic communications.
Chapters 1 to 6 talk about, in depth, the physics and engineering purposes of photonic and optoelectronic gadgets utilized in fiber-optic communication programs.
Chapters 7 to 11 deal with transmission system design, varied propagation impairments, and how you can mitigate them.
Chapters 1 to 7 are supposed for undergraduate college students on the senior stage or for an introductory graduate course. The sections with asterisks could also be omitted for undergraduate educating or they could be lined qualitatively with out the rigorous evaluation offered.
Chapters 8 to 11 are supposed for a complicated course on fiber-optic programs on the graduate stage and additionally for researchers working within the subject of fiber-optic communications.
All through the e-book, many of the essential outcomes are obtained by first rules somewhat than citing analysis articles.
Every chapter has many labored issues to assist college students perceive and reinforce the ideas. Optical communication is an interdisciplinary subject that mixes photonic/optoelectronic gadgets and communication programs.
The research of photonic gadgets requires a background in electromagnetics. Subsequently, Chapter 1 is dedicated to a assessment of electromagnetics and optics.
The rigorous evaluation of fiber modes in Chapter 2 wouldn’t be potential with out understanding the Maxwell equations reviewed in Chapter 1.
Chapter 2 introduces college students to optical fibers. The preliminary sections cope with the qualitative understanding of sunshine propagation in fibers utilizing ray optics idea, and in later sections an evaluation of fiber modes utilizing wave idea is carried out.
The fiber is modeled as a linear system with a switch operate, which permits college students to interpret fiber chromatic dispersion and polarization mode dispersion as some type of filter.
Two primary parts of an optical transmitter are the optical supply, equivalent to a laser, and the optical modulator, and these parts are mentioned in Chapters 3 and 4, respectively.
After introducing the fundamental ideas, equivalent to spontaneous and stimulated emission, varied sorts of semiconductor laser constructions are lined in Chapter 3.
Chapter 4 offers with superior modulation codecs and several types of optical modulators that convert electrical knowledge into optical knowledge.
Chapter 5 offers with the reverse course of – conversion of optical knowledge into electrical knowledge. The essential rules of photodetection are mentioned.
That is adopted by an in depth description of widespread sorts of photodetectors. Then, direct detection and coherent detection receivers are lined intimately.
Chapter 6 is dedicated to the research of optical amplifiers. The bodily rules underlying the amplifying motion and the system affect of amplifier noise are lined in Chapter 6.
In Chapters 7 and 8, the photonics and optoelectronics gadgets mentioned to this point are put collectively to kind a fiber-optic transmission system.
Efficiency degradations attributable to fiber loss, fiber dispersion, optical amplifier noise, and receiver noise are mentioned intimately in Chapter 7.
Scaling legal guidelines and engineering guidelines for fiber-optic transmission design are additionally offered. Efficiency evaluation of assorted modulation codecs with direct detection and coherent detection is carried out in Chapter 8.
To make the most of the complete bandwidth of the fiber channel, usually, channels are multiplexed in time, polarization and frequency domains, which is the subject lined in Chapter 9.
To date the fiber-optic system has been handled as a linear system, however in actuality it’s a nonlinear system attributable to nonlinear results such because the Kerr impact and Raman impact.
The origin and affect of fiber nonlinear results are lined intimately in Chapter 10. The final chapter is dedicated to the research of digital sign processing (DSP) for fiber communication programs, which has drawn vital analysis curiosity lately.
Speedy advances in DSP have enormously simplified the coherent detection receiver structure – section and polarization alignment may be carried out within the electrical area utilizing DSP as an alternative of utilizing analog optical phase-locked loop and polarization controllers.
As well as, fiber chromatic dispersion, polarization mode dispersion and even fiber nonlinear results to some extent may be compensated for utilizing DSP. A few decade in the past, these results had been thought-about detrimental.
Several types of algorithm to compensate for laser section noise, chromatic dispersion, polarization mode dispersion and fiber nonlinear impairments are mentioned on this chapter.
Supplementary materials together with PowerPoint slides and MATLAB coding may be discovered by following the associated web sites hyperlink from the e-book dwelling web page at http://eu.wiley.com/WileyCDA/WileyTitle/productCd -0470518677.html.
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