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Fiber-optic Fabry-Perot sensors an introduction

Principles Physics of Fabry-Perot Cavities Principles of Fiber-Optic Fabry-Perot Interferometric (FFPI) Sensors Two-Beam Interference Three-Beam Interference Multi-Beam Interference References Microstructures of ffpi sensors Singlemode FFPI Structures Intrinsic FFPI Sensors IFFPI Structures Based on FBG Pairs Fundamentals of FBG Principle of IFFPIs Based on FBGs IFFPI Structures Based on Reflective Films IFFPI Structures Based on Air Holes IFFPI Structures Based on Fusion Splicing of Different Kinds of Fibers Asymmetric IFFPI Structures Extrinsic FFPI Sensors Capillary-Aligned EFFPI EFFPI Based on Fiber End and Diaphragm EFFPI Based on Microfabrication Technologies EFFPI Based on Capillary or Hollow Fiber EFFPI Based on Bubble EFFPI Based on Reflective Film EFFPI Based on Sensitive Film Multimode FFPI Sensors Hybrid FFPI Sensors Intrinsic-Extrinsic Hybrid FFPIs Hybrid FFPI with Other Fiber-Optic Structures Microstructured FFPI Sensors Photonic Crystal Fiber FFPIs Microstructured Optical Fiber FFPIs Microfiber or Tapered FFPIs References Fabrication Techniques for ffpi s ensors Femtosecond Laser Micromachining Open Notch FFP Sensor Fabricated by Femtosecond Laser Sealed Fiber-Optic EFPI Fabricated by Femtosecond Laser Intrinsic Fiber-Optic FPI Fabricated by Femtosecond Laser Deep UV Laser Micromachining System Direct Engraving of FFPI Strain Sensor on Silica Fibers Self-Enclosed FFPI Strain, Pressure, Refractive Index, and Temperature Sensors Sapphire FFPI Sensor FIB Milling (Tapered Fibers)Chemical Etching (Doped Fibers)Strain Sensor Fabricated by Chemical Etching Pressure Sensor Fabricated by Chemical Etching Vibration Sensor Fabricated by Combination of Chemical Etching and FIB Summary References Physical and Biochemical Sensors Based on FFPIs Physical Sensors Temperature Sensors Strain, Displacement, and Force Sensors Pressure Sensors Acoustics and Ultrasonic Sensors Electric- and Magnetic-Related Sensors Biochemical Sensors Refractive Index Sensors Humidity Sensors Gas Sensors Other Types of Biochemical FFPI Sensors Temperature-Insensitive or Temperature-Compensated Sensing References Interrogation and Multiplexing Techniques for ffp s ensors Introduction Intensity Interrogating Methods and Instruments Single-Wavelength Intensity Interrogating Method and Instrument Intensity Interrogating Method with Multiple Wavelengths Spectral Interrogating for Absolute OPD Demodulation Spectral Interrogation Based on Spectrometers Spectral Interrogation Based on Tunable Filters Spectral Interrogation Based on Swept or Tunable Lasers Comparison of Different Spectral Interrogation Methods OPD Demodulation Methods OPD Demodulation Based on Spectrum Interrogation and Fourier Transform OPD Demodulation Based on Interferometric Scanning in WLI Comparison of OPD Demodulation Methods Multiplexing Methods of FFP Sensors Spatial Frequency-Division Multiplexing Coarse Wavelength-Division Multiplexing SFDM/CWDM of FFP Sensors Time-Division Multiplexing Multiplexing of FFP Sensors Based on Microwave-Assisted Reconstruction Coherence Multiplexing Based on Interferometric Scanning WLI Comparison of Multiplexing Methods References Applications Structural Health Monitoring Energy (Oil, Gas, Electricity)Aerospace (Aircrafts, Engines)Biomedicine Other Applications References

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