Fiber Optics Installer (FOI) Certification Exam Guide

Pass the FOI exam with a strong foundation in fiber optic
technology

Fiber Optics Installer (FOI) Certification Exam Guide
gives you a solid foundation in fiber optics and thorough
preparation for the Fiber Optics Installer (FOI) certification.
Endorsed by the Electronics Technicians Association, International,
this guide serves as both a comprehensive self-study course and a
useful desk reference for aspiring fiber optics installers.
Coverage includes the basic principles of light, optical fiber
construction, safety, fusion, mechanical splicing, connectors,
fiber-optic light sources, transmitters, detectors, test equipment,
and more. Each chapter meets or exceeds the ETA FOI knowledge
competency, with key exam information highlighted for easy
reference. Real-world scenarios illustrate how particular solutions
are applied in common working environments, giving you a clear
understanding of to use the tactics in the field. Chapter exercises
and review questions offer plenty of opportunity for practice.

This book helps you prepare for certification, and more
importantly, the everyday work the job entails.

• Determine how much you already know with a pre-study
  assessment

• Find key exam information and terms quickly with
  chapter-by-chapter objectives

• Study real-world scenarios to understand how concepts are
  applied

• Pinpoint weak areas with practice and review questions that
  test your knowledge

If you are seeking a strong knowledge base -- and complete
exam prep -- you will find Fiber Optics Installer (FOI)
Certification Exam Guide to be a critically useful
reference.

Autorentext

Bill Woodward has served four terms as chairman of the
Electronics Technicians Association, International and is a
principal electrical engineer based in Chesapeake, VA. He is also
the committee chairman of the ETA fiber optic installer (FOI),
fiber optic technician (FOT), and fiber optic designer (FOD)
certification programs.

Zusammenfassung
Pass the FOI exam with a strong foundation in fiber optic technology Fiber Optics Installer (FOI) Certification Exam Guide gives you a solid foundation in fiber optics and thorough preparation for the Fiber Optics Installer (FOI) certification. Endorsed by the Electronics Technicians Association, International, this guide serves as both a comprehensive self-study course and a useful desk reference for aspiring fiber optics installers. Coverage includes the basic principles of light, optical fiber construction, safety, fusion, mechanical splicing, connectors, fiber-optic light sources, transmitters, detectors, test equipment, and more. Each chapter meets or exceeds the ETA FOI knowledge competency, with key exam information highlighted for easy reference. Real-world scenarios illustrate how particular solutions are applied in common working environments, giving you a clear understanding of to use the tactics in the field. Chapter exercises and review questions offer plenty of opportunity for practice.

This book helps you prepare for certification, and more importantly, the everyday work the job entails.

• Determine how much you already know with a pre-study assessment
• Find key exam information and terms quickly with chapter-by-chapter objectives
• Study real-world scenarios to understand how concepts are applied
• Pinpoint weak areas with practice and review questions that test your knowledge
  If you are seeking a strong knowledge base and complete exam prep you will find Fiber Optics Installer (FOI) Certification Exam Guide to be a critically useful reference.

Inhalt

Introduction xxvii

Assessment Test xxxii

Chapter 1 History of Fiber Optics and Broadband Access 1

Evolution of Light in Communication 2

Early Forms of Light Communication 2

The Quest for Data Transmission 3

Evolution of Optical Fiber Manufacturing Technology 4

Controlling the Course of Light 4

Extending Fiber's Reach 6

Evolution of Optical Fiber Integration and Application 7

Broadband since the Turn of the Century 8

The Role of Fiber Optics in Broadband 9

Broadband Speed and Access at the Turn of the Century and Today 9

Summary 10

Exam Essentials 11

Review Questions 12

Chapter Exercises 13

Recognize the Refraction of Light 13

Identify Total Internal Reflection 13

Detect Crosstalk between Multiple Optical Fibers 14

Recognize Attenuation in an Optical Fiber 14

Chapter 2 Principles of Fiber-Optic Transmission 15

The Fiber-Optic Link 16

Transmitter 17

Receiver 17

Optical Fibers 18

Connectors 18

Decibels (dB) 19

Calculating dB Power Loss and Power Gain 20

Expressing dB in Percentages 21

The Rules of Thumb 24

Absolute Power 25

Summary 28

Exam Essentials 28

Review Questions 29

Chapter Exercises 31

Calculate the Decibel Value of a Gain or Loss in Power 31

Calculate the Gain or Loss in Power from a Known Decibel Value 31

Calculate the Gain or Loss in Power Using the dB Rules of Thumb 31

Convert dBm to a Power Measurement 32

Convert a Power Measurement to dBm 32

Chapter 3 Basic Principles of Light 33

Light as Electromagnetic Energy 34

Wavelength and Frequency 35

Characteristics of Electromagnetic Radiation 37

The Electromagnetic Spectrum 38

Refraction 41

What Causes Refraction? 42

Calculating the Index of Refraction 44

Total Internal Reflection 45

Fresnel Reflections 48

Summary 49

Exam Essentials 50

Review Questions 51

Chapter Exercises 54

Convert Various Wavelengths to Corresponding Frequencies 54

Convert Various Frequencies to Corresponding Wavelengths 54

Calculate the Amount of Energy in a Photon Using Planck's Constant 54

Calculate the Speed of Light through a Transparent Medium Using Its Refractive Index 54

Use Snell's Law to Calculate the Critical Angle of Incidence 55

Calculate the Loss in Decibels from a Fresnel Reflection 55

Chapter 4 Optical Fiber Construction and Theory 57

Optical Fiber Components 58

Core 59

Cladding 59

Coating 60

Standards 61

Materials 62

Tensile Strength 65

Manufacturing Optical Fiber 65

Modified Chemical Vapor Deposition (MCVD) 67

Outside Vapor Deposition (OVD) 68

Vapor Axial Deposition (VAD) 68

Plasma Chemical Vapor Deposition (PCVD) 68

Mode 69

Calculating the Numerical Aperture and Modes 70

Refractive Index Profiles 71

Summary 75

Exam Essentials 76

Review Questions 77

Chapter Exercises 80

Select the Proper Optical Fiber Coating for a Harsh Environment 80

Identify an Industry Standard that Defines the Specific Performance Characteristics on an Optical Fiber 80

Identify an Optical Fiber from Its Refractive Index Profile 80

Calculate the Numerical Aperture of an Optical Fiber 81

Calculate the Number of Modes in an Optical Fiber 81

Chapter 5 Optical Fiber Characteristics 83

It All Adds Up 85

Dispersion 86

Modal Dispersion 87 Materia...