What Is Fiber-Optic TV?

This book, as a monograph on the transmission technology of optical fiber television, is a summary of the knowledge and experience gained by authors, colleagues, and students in this field for more than ten years, especially seven years, in teaching, research, technology development, and engineering practice in this field. The author's lectures in Shandong, Guangdong, Beijing, Hebei, Henan, Sichuan, Xinjiang, and Hunan formed the original blueprint of this book. In order to facilitate the reading of readers at different technical levels, this book chooses themes from a wide range of related fields, focuses on the description of physical concepts, and also conducts more rigorous mathematical derivation when necessary.

Fiber TV transmission technology

Title: Fiber TV Transmission Technology

Publisher: Electronic Industry Press

Price: 78

Barcode: 9787535351141

ISBN: ISBN 7-5053-5114-1

Author: Lin Rujian

Printing date: 2003-3-1

Publication date: 2003-3-1

Hardcover Paperback _ Folio_Pages: 16 paperback, 741 pages

Chinese diagram method:

Chinese map first level classification:

Chinese map secondary classification:

ISBN:

Foreword

Chapters 1 to 5 describe the development history of optical fiber communication and the basic components of optical fiber transmission systems-optical fibers, optical cables, light sources, light detectors, and optical passive devices. According to the importance of application, the optical fiber part only talks about single-mode optical fiber; the light source part focuses on the laser and analyzes its spectral characteristics and modulation characteristics; the optical passive device part emphasizes fiber online devices and dielectric planar waveguide optical modulators.

Chapter 6 explains the characteristics of analog TV signals and the testing of video signals. Chapter 7 explains the digitization and compression coding methods of video and sound signals, and gives CCIR601 and MPEG2 digital television systems.

Chapter 8 describes the baseband digital transmission system PDH and SDH, with emphasis on SDH.

At this point, a foundation has been laid for the analysis of the fiber-optic television transmission system, and various systems will be discussed next. Readers who already have this foundation can read the following chapters directly.

Chapter 9 introduces the baseband digital optical fiber transmission system. The emphasis is on system error rate analysis and optical link design. An improved Gaussian approximation algorithm for system error rate and receiver sensitivity is derived. Code speed distance product formula. The test of the index of digital optical fiber transmission system is discussed.

Chapter 10 describes analog optical fiber transmission systems, with an emphasis on subcarrier multiplexing (SCM), especially AM SCM multi-channel television optical fiber transmission systems, as it forms the basis of an optical CATV network. The factors affecting the carrier-to-noise ratio and nonlinear distortion of this system are discussed in detail.

Chapter 11 describes the fiber amplifier and the 1550 nm fiber transmission system. Based on the basic theory of the fiber amplifier, the system quality damage introduced by the fiber amplifier is derived. Special attention has been paid to the issue of the ultra-long-distance 1550 nm analog fiber transmission system.

Chapters 12, 13, and 14 focus on the topics of design, construction, and testing of fiber-optic CATV networks, including a summary of engineering experience and the design of unfamiliar uplink channels.

Chapter 15 introduces digital modulation? SCM optical fiber transmission system. Based on the introduction of various digital modulation schemes, QPSK and MQAM are discussed in detail, and they are placed in a bidirectional transmission environment of HFC network for performance analysis. The characteristics of intrusive interference in the HFC network channel and its influence on digital demodulator are explored. The interaction between analog and digital signals in the downlink channel caused by laser clipping is also analyzed, and a new relationship between bit error rate and carrier-to-noise ratio is established.

Chapter 16 deals with information highways and fiber-optic coaxial networks. The status of HFC network in information superhighway is discussed. Introduced various technologies related to backbone transmission network and access network: ATM, IP, xDSL, FTTC and HFC, and put forward a solution to comprehensively realize IP, telephone, VOD and DVB services on HFC network. At last, the international standards and implementation methods of Cable Modem are emphasized.

Participants in this book are engineer Chen Weibin (Chapter 6), associate researcher Wu Fang (Chapter 11), associate researcher Li Li (Chapter 14), and lecturers Chen Jianqiang and Song Yingxiong (Chapter 15 and 16). In addition, Associate Professor Yao Shouzhen provided the material and research results of fiber coupler and wavelength division multiplexer for Chapter 3.

In the process of writing this book, I have consulted many Chinese and foreign literatures and books, including the related papers of the author's Shanghai University Department of Communication Engineering, Optical Fiber Research Institute, and colleagues of Shanghai Tianbo Optoelectronic Technology Co., Ltd. In addition, he often discusses issues with Professor Huang Zhaoming and benefits greatly. Professor Zhang Huan, academician of the Chinese Academy of Sciences and Shanghai Jiaotong University is pleased to write a preface to this book. The authors would like to express their sincere thanks to all these colleagues, friends and teachers for their support and care.

If this book can help the progress of China's radio and television industry and the development of China's information industry facing the 21st century, the author will be greatly relieved. For the omissions and errors in the book, welcome friends from all walks of life to correct me.

School of Communication and Information Engineering, Shanghai University

Lin Rujian

May 2000

table of Contents

Chapter 1 Introduction

1.1 Electromagnetic waves and optical carriers

1.2 Historical review of optical communication

1.3 Advantages of Optical Fiber Transmission

1.4 Composition of optical fiber transmission system

1.5 Classification of optical fiber transmission systems

references

Chapter 2 Optical Waveguide Transmission Principles

2.1 Construction of optical fiber

2.2 Geometrical optical description of fiber transmission

2.3 Mode theory of optical fiber transmission

2.4 single-mode fiber

2.5 Optical fiber transmission characteristics

2.6 Structure and characteristics of optical cable

references

Chapter 3 Optical Passive Devices

3.1 Fiber Coupler

3.2 Optical splitter

3.3 fiber optic connector

3.4 Optical Isolator

3.5 optical modulator

references

Chapter 4 Light Sources

4.1 Overview

4.2 Electrically injected semiconductor light

4.3 Typical Semiconductor Laser Structure

4.4 Characteristics of semiconductor lasers

4.5 Theoretical analysis of laser response characteristics

4.6 Analysis of laser spectrum

4.7 Semiconductor laser components

4.8 Bias, Control and Drive of Semiconductor Lasers

4.9 Light-emitting tube (LED)

references

Chapter 5 Light Detectors

5.1 Overview

5.2 Working principle of photodetector

5.3 Shot noise analysis of photodetectors

5.4 Light detector structure

references

Chapter 6 TV Signals

6.1 Image and vision

6.2 Image signal characteristics

6.3 Modulation of image signals

6.4 Measurement of analog TV signals

references

Chapter 7 TV Source Coding

7.1 Digitization of TV signals

7.2 PCM coding principle

7.3 TV signal coding parameters and coding standards

7.4 Compression coding method of TV signal

7.5 MPEG and MPEG-2 standards

7.6 Other codec standards

references

Chapter 8 Baseband Digital Transmission System

8.1 PCM coding of telephone signals

8.2 Time Division Multiplexing (TDM)

8.3 Quasi-Synchronous Digital Hierarchy (PDH)

8.4 Synchronous Digital Hierarchy (SDH)

8.5 Transmission impairment

references

Chapter 9 Digital Optical Fiber Communication System Design

9.1 Overview

9.2 Optical receiver noise analysis

9.3 Gaussian approximation of bit error rate

9.4 Optical receiver circuit

9.5 Timing extraction and decision regeneration

9.6 Link Design of Digital Optical Fiber Communication System

9.7 Line coding

9.8 Index and Test of Digital Optical Fiber Transmission System

references

Chapter 10 Analog TV Fiber Transmission System

10.1 Direct modulation video fiber transmission system

10.2 PFM TV Optical Transmission System

10.3 Sub-carrier Multiplexing (SCM) fiber transmission system

10.4 FM Optical Fiber Transmission System

10.5 AM? VSB optical fiber transmission system

10.6 AM? VSB external modulation optical fiber transmission system

references

Chapter 11 Erbium-Doped Fiber Amplifier and 1550 nm AM Fiber Transmission System

11.1 Introduction

11.2 Principles of Erbium-Doped Fiber Amplifier

11.3 Rate Equation

11.4 Analysis of Erbium-Doped Fiber Amplifier

11.5 Optimized Design of Erbium-Doped Fiber Amplifier

11.6 Noise in Erbium-Doped Fiber Amplifiers

11.7 Erbium-Doped Fiber Amplifiers for Television Distribution (CATV) Networks

11.8 Erbium Co-Doped Fiber Amplifier

11.9 Structure of Analog Optical Fiber Transmission System with EDFA

11.10 Ultra Long Distance 1550 nm Analog Fiber Transmission System

references

Chapter 12 Structure and Design of Optical CATV Networks

12.1 Advantages of Optical Fiber Transmission for Cable TV

12.2 Network Topology and Structure of Optical CATV Network

12.3 Design of Optical CATV Network Trunk Cable

12.4 Design of Channels for Optical CATV Networks

references

Chapter 13 Construction of Optical Fiber Transmission Lines

13.1 Preparation for construction of optical cable lines

13.2 Laying of optical cables

13.3 Connection of optical fiber and optical cable

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Chapter 14 Measurements of Optical Fiber CATV Networks

14.1 Overview

14.2 Measurement of C / N?

14.3 Combined third-order beat distortion? CTB? Measurement

14.4 Measurement of Combined Second-Order Intermodulation Distortion? CSO?

14.5 Measurement of cross-talk modulation ratio CM

14.6 Measurement of HUM?

14.7 Measurement of carrier level and frequency

14.8 Optical Link Measurement

14.9 Measurement of laser relative intensity noise and optical modulation

references

Chapter 15 Digitally Modulated SCM Optical Fiber Transmission System

15.1 Basic Principles of Carrier Digital Transmission System

15.2 Frequency Shift Keying (FSK)

15.3 Four-Phase Phase Shift Keying (QPSK)

15.4 Quadrature Amplitude Modulation (? M ?? 2QAM)

15.5 Multilevel Vestigial Sideband Amplitude Modulation (? M? VSB)

15.6 Comparison of various digital modulation methods

15.7 Multi-Carrier Modulation

15.8 Synchronous Code Division Multiple Access (SCDMA)

15.9 Noise Measurement and Analysis of Traveling Channels on HFC Networks

15.10 Clipping Noise in the Upstream Channel

15.11 Impact of Traveling Channel Noise and Interference on HFC Networks on QPSK Modems

15.12 Clip Interference on Downstream Channels of HFC Networks

15.13 RS coding and interleaving

references

Chapter 16 Information Superhighway and HFC Network

16.1 Information Superhighway and Internet

16.2 Network Technology of Information Superhighway

16.3 Twisted-pair copper wire access technology

16.4 Fiber Coaxial Hybrid (HFC) Network

16.5 Computer Networks and TCP / IP

16.6 Cable Modem System

16.7 Cable Phone System Overview

16.8 Digital Video Broadcasting (DVB)

16.9 HDTV and North American Optical Cable Digital Video Transmission Standard

references

Appendix Typical Test Instruments for Fiber TV Transmission