Zujie Fang, Ken Chin, Ronghui Qu, Haiwen Cai

Fundamentals of Optical Fiber Sensors

Herausgegeben von Chang, Kai

• Gebundenes Buch

Produktbeschreibung

This book describes the latest development in optical fiber devices, and their applications to sensor technology. Optical fiber sensors, an important application of the optical fiber, have experienced fast development, and attracted wide attentions in basic science as well as in practical applications. Sensing is often likened to human sense organs. Optical fiber can not only transport information acquired by sensors at high speed and large volume, but also can play the roles of sensing element itself. Compared with electric and other types of sensors, fiber sensor technology has unique merits. It has advantages over conventional bulky optic sensors, such as combination of sensing and signal transportation, smaller size, and possibility of building distributed systems. Fiber sensor technology has been used in various areas of industry, transportation, communication, security and defense, as well as daily life. Its importance has been growing with the advancement of the technology and the expansion of the scope of its application, a growth this book fully describes.

Produktdetails

• Wiley Series in Microwave and Optical Engineering
• Verlag: Wiley & Sons
• 1. Auflage
• Seitenzahl: 496
• Erscheinungstermin: 4. September 2012
• Englisch
• Abmessung: 240mm x 161mm x 31mm
• Gewicht: 906g
• ISBN-13: 9780470575406
• ISBN-10: 0470575409
• Artikelnr.: 35259545

Autorenporträt

ZUJIE FANG is a Professor at the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences. KEN K. CHIN is a Professor of Physics at the New Jersey Institute of Technology. His research interests include infrared imaging sensing and device physics. RONGHUI QU is a Professor at the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences. HAIWEN CAI is a Professor at the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences.

Inhaltsangabe

PREFACE xi 1 INTRODUCTION 1 1.1 Historical Review and Perspective 1 1.2
Classifications of Optical Fiber Sensors 3 1.3 Overview of the Chapters 6
References 8 2 FUNDAMENTALS OF OPTICAL FIBERS 10 2.1 Introduction to
Optical Fibers 10 2.1.1 Basic Structure and Fabrication of Optical Fiber 10
2.1.2 Basic Characteristics 12 2.1.3 Classifications of Optical Fibers 17
2.2 Electromagnetic Theory of Step-Index Optical Fibers 18 2.2.1 Maxwell
Equations in Cylindrical Coordinates 19 2.2.2 Boundary Conditions and
Eigenvalue Equations 23 2.2.3 Weakly Guiding Approximation, Hybrid Modes,
and Linear Polarized Modes 26 2.2.4 Field Distribution and Polarization
Characteristics 29 2.2.5 Multimode Fiber and Cladding Modes 35 2.2.6
Propagation of Optical Pulses in Optical Fibers 39 2.3 Basic Theory of the
Gradient-Index Optical Fiber 42 2.3.1 Ray Equation in Inhomogeneous Media
42 2.3.2 Ray Optics of GRIN Fiber 46 2.3.3 Wave Optics of GRIN Fiber 51
2.3.4 Basic Characteristics of Gradient Index Lens 56 2.4 Special Optical
Fibers 57 2.4.1 Rare-Earth-Doped Fibers and Double-Cladding Fibers 57 2.4.2
Polarization Maintaining Fibers 60 2.4.3 Photonic Crystal Fiber and
Microstructure Fiber 64 Problems 69 References 71 3 FIBER SENSITIVITIES AND
FIBER DEVICES 76 3.1 Fiber Sensitivities to Physical Conditions 76 3.1.1
Sensitivity to Axial Strain 77 3.1.2 Sensitivity to Lateral Pressure 78
3.1.3 Bending-Induced Birefringence 83 3.1.4 Torsion-Induced Polarization
Mode Cross-Coupling 87 3.1.5 Bending Loss 91 3.1.6 Vibration and Mechanical
Waves in Fiber 95 3.1.7 Sensitivity to Temperature 96 3.2 Fiber Couplers 97
3.2.1 Structures and Fabrications of 2×2 Couplers 98 3.2.2 Basic
Characteristics and Theoretical Analyses of the Coupler 99 3.2.3 N×N and
1×N Fiber Star Couplers 110 3.2.4 Coupling in Axial Direction and Tapered
Fiber 114 3.3 Fiber Loop Devices Incorporated with Couplers 118 3.3.1 Fiber
Sagnac Loops 118 3.3.2 Fiber Rings 126 3.3.3 Fiber Mach-Zehnder
Interferometers and Michelson Interferometers 131 3.3.4 Fiber Loops
Incorporated with 3×3 Couplers 135 3.4 Polarization Characteristics of
Fibers 142 3.4.1 Polarization State Evolution in Fibers 142 3.4.2 Basic
Characteristics of Polarization Mode Dispersion 154 3.4.3 Spun Fiber and
Circular Birefringence Fiber 157 3.4.4 Faraday Rotation and Optical
Activity 159 3.5 Fiber Polarization Devices 162 3.5.1 Fiber Polarizers 162
3.5.2 Fiber Polarization Controller 165 3.5.3 Fiber Depolarizer and
Polarization Scrambler 166 3.5.4 Fiber Optical Isolator and Circulator 170
Problems 172 References 174 4 FIBER GRATINGS AND RELATED DEVICES 183 4.1
Introduction to Fiber Gratings 183 4.1.1 Basic Structure and Principle 183
4.1.2 Photosensitivity of Optical Fiber 186 4.1.3 Fabrication and
Classifications of Fiber Gratings 190 4.2 Theory of Fiber Grating 194 4.2.1
Theory of Uniform FBG 194 4.2.2 Theory of Long-Period Fiber Grating 202
4.2.3 Basic Theory of Nonuniform Fiber Gratings 208 4.2.4 Inverse
Engineering Design 214 4.2.5 Apodization of Fiber Grating 219 4.3 Special
Fiber Grating Devices 222 4.3.1 Multisection FBGs 222 4.3.2 Chirped Fiber
Bragg Grating 233 4.3.3 Tilted Fiber Bragg Gratings 236 4.3.4 Polarization
Maintaining Fiber Gratings 243 4.3.5 In-Fiber Interferometers and Acoustic
Optic Tunable Filter 246 4.4 Fiber Grating Sensitivities and Fiber Grating
Sensors 249 4.4.1 Sensitivities of Fiber Gratings 250 4.4.2 Tunability of
Fiber Gratings 252 4.4.3 Packaging of Fiber Grating Devices 255 4.4.4 Fiber
Grating Sensor Systems and Their Applications 259 Problems 263 References
266 5 DISTRIBUTED OPTICAL FIBER SENSORS 278 5.1 Optical Scattering in Fiber
278 5.1.1 Elastic Optical Scattering 279 5.1.2 Inelastic Optical Scattering
281 5.1.3 Stimulated Raman Scattering and Stimulated Brillouin Scattering
285 5.2 Distributed Sensors Based on Rayleigh Scattering 286 5.2.1 Optical
Time Domain Reflectometer 286 5.2.2 Polarization OTDR 292 5.2.3 Coherent
OTDR and Phase Sensitive OTDR 294 5.2.4 Optical Frequency Domain
Reflectometry 298 5.3 Distributed Sensors Based on Raman Scattering 300
5.3.1 Raman Scattering in Fiber 301 5.3.2 Distributed Anti-Stokes Raman
Thermometry 304 5.3.3 Frequency Domain DART 307 5.4 Distributed Sensors
Based on Brillouin Scattering 308 5.4.1 Brillouin Scattering in Fiber 308
5.4.2 Brillouin Optical Time Domain Reflectrometer 312 5.4.3 Brillouin
Optical Time Domain Analyzer 316 5.5 Distributed Sensors Based on Fiber
Interferometers 322 5.5.1 Configuration and Characteristics of
Interferometric Fiber Sensors 323 5.5.2 Low Coherence Technology in a
Distributed Sensor System 327 5.5.3 Sensors Based on Speckle Effect and
Mode Coupling in Multimode Fiber 331 Problems 335 References 337 6 FIBER
SENSORS WITH SPECIAL APPLICATIONS 351 6.1 Fiber Optic Gyroscope 351 6.1.1
Interferometric FOG 352 6.1.2 Brillouin Laser Gyro and Resonance Fiber
Optic Gyroscope 362 6.2 Fiber Optic Hydrophone 364 6.2.1 Basic Structures
365 6.2.2 Sensor Arrays and Multiplexing 370 6.2.3 Low Noise Laser Source
372 6.3 Fiber Faraday Sensor 373 6.3.1 Faraday Effect in Fiber 374 6.3.2
Electric Current Sensor Based on Faraday Rotation 376 6.4 Fiber Sensors
Based on Surface Plasmon Effect 379 6.4.1 Surface Plasmon Effect 379 6.4.2
Sensors Based on SPW 383 Problems 386 References 387 7 EXTRINSIC FIBER
FABRY-PEROT INTERFEROMETER SENSOR 395 7.1 Basic Principles and Structures
of Extrinsic Fiber F-P Sensors 395 7.1.1 Structures of EFFP Devices 396
7.1.2 Basic Characteristics of a Fabry-Perot Interferometer 398 7.2 Theory
of a Gaussian Beam Fabry-Perot Interferometer 401 7.2.1 Basic Model and
Theoretical Analysis 401 7.2.2 Approximation as a Fizeau Interferometer 404
7.3 Basic Characteristics and Performances of EFFPI Sensors 406 7.3.1
Sensitivity of an EFFPI Sensor 406 7.3.2 Linear Range and Dynamic Range of
Measurement 408 7.3.3 Interrogation and Stability 410 7.3.4 Frequency
Response 413 7.4 Applications of the EFFPI Sensor and Related Techniques
417 7.4.1 Localization of the Sound Source 417 7.4.2 Applications in an
Atomic Force Microscope 418 7.4.3 More Application Examples 419 Problems
421 References 422 APPENDICES 427 Appendix 1 Mathematical Formulas 427 A1.1
Bessel Equations and Bessel Functions 427 A1.2 Runge-Kutta Method 432 A1.3
The First-Order Linear Differential Equation 433 A1.4 Riccati Equation 433
A1.5 Airy Equation and Airy Functions 434 Appendix 2 Fundamentals of
Elasticity 435 A2.1 Strain, Stress, and Hooke's Law 435 A2.2 Conversions
Between Coordinates 438 A2.3 Plane Deformation 440 A2.4 Equilibrium of
Plates and Rods 443 A2.5 Photoelastic Effect 446 Appendix 3 Fundamentals of
Polarization Optics 446 A3.1 Polarized Light and Jones Vector 446 A3.2
Stokes Vector and Poincar¿e Sphere 447 A3.3 Optics of Anisotropic Media 449
A3.4 Jones Matrix and Mueller Matrix 450 A3.5 Measurement of Jones Vector
and Stokes Vector 453 Appendix 4 Specifications of Related Materials and
Devices 454 A4.1 Fiber Connectors 456 INDEX 459