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Fiber Bragg Gratings

Fiber Bragg Gratings Book
Author : Raman Kashyap
Publisher : Academic Press
Release : 2009-10-23
ISBN : 9780080919911
Language : En, Es, Fr & De

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Book Description :

Provides an overview of Fiber Bragg Gratings (FBGs), from fundamentals to applications Evaluates the advantages and disadvantages of particular applications, methods and techniques Contains new chapters on sensing, femtosecond laser writing of FBGs and poling of glass and optical fibers Includes a special version of the photonic simulator PicWave(tm), allowing the reader to make live simulations of many of the example devices presented in the book. This fully revised, updated and expanded second edition covers the substantial advances in the manufacture and use of FBGs in the years since the publication of the pioneering first edition. It presents a comprehensive treatise on FBGs and addresses issues such as the merits of one solution over another; why particular fabrication methods are preferred; and what advantages a user may gain from certain techniques. Beginning with the principles of FBGs, the book progresses to discuss photosensitization of optical fibers, Bragg grating fabrication and theory, properties of gratings, specific applications, sensing technology, glass poling, advances in femtosecond laser writing of Bragg gratings and FBG measurement techniques. In addition to material on telecommunications usage of FBGs, application areas such as fiber lasers and sensors are addressed in greater detail. This special version of Picwave is limited to modelling only the passive fibre devices covered in this book. However the full PicWave package is capable of modelling other non-linear and active devices such as laser diodes and SOAs as discussed in Chapter 8. More information about PicWave can be found at www.photond.com/products/picwave.htm. In addition to researchers, scientists, and graduate students, this book will be of interest to industrial practitioners in the field of fabrication of fiber optic materials and devices. Raman Kashyap, Canada Research Chair holder on Future Photonics Systems, and Professor at École Polytechnique, University of Montréal since 2003, has researched optical fibers and devices for over 30 years. He pioneered the fabrication of FBGs and applications in telecommunications and photonics. Provides an overview of Fiber Bragg Gratings (FBGs), from fundamentals to applications Evaluates the advantages and disadvantages of particular applications, methods and techniques Contains new chapters on sensing, femtosecond laser writing of FBGs and poling of glass and optical fibers Includes a special version of the photonic simulator PicWave(tm), allowing the reader to make live simulations of many of the example devices presented in the book

Fiber Bragg Gratings

Fiber Bragg Gratings Book
Author : Andreas Othonos,Kyriacos Kalli
Publisher : Artech House Optoelectronics L
Release : 1999
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Fiber Bragg gratings are flexible, cost-effective and highly efficient, with a vast range of potential applications. This timely new work provides a comprehensive description of the principles and practical applications of this latest technology, which has the potential to revolutionize telecommunications and significantly impact optical fiber sensing. Here the authors explain the underlying physics and practical aspects in a clear and unambiguous manner.

Fiber Bragg Grating Sensors Recent Advancements Industrial Applications and Market Exploitation

Fiber Bragg Grating Sensors  Recent Advancements  Industrial Applications and Market Exploitation Book
Author : Andrea Cusano,Antonello Cutolo,Jacques Albert
Publisher : Bentham Science Publishers
Release : 2011
ISBN : 160805084X
Language : En, Es, Fr & De

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Book Description :

The book is an exciting source of information for individuals interested in learning about and marketing sensors. The book focuses on scientific and commercial advances in Fiber Bragg Grating (FBG) sensor technology since its discovery over 30 years ago.

Polymer Optical Fiber Bragg Gratings

Polymer Optical Fiber Bragg Gratings Book
Author : Ricardo Oliveira,Lucia Maria Botas Bilro,Rogerio Nunes Nogueira
Publisher : CRC Press
Release : 2019-12-10
ISBN : 1000734005
Language : En, Es, Fr & De

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Book Description :

Polymer optical fibers (POFs) have been regarded as a viable alternative to silica fibers in a variety of sensing applications. Fiber optic sensors offer key advantages over other sensing technologies, which include immunity to electromagnetic interference, compact, lightweight, multiplexing capability, and higher sensitivity. This book gives an overview of the polymer optical fiber Bragg grating (POFBG) technology over the last 20 years, covering aspects related to the fiber Bragg grating fabrication and also sensing applications. The book is split into five chapters, and it is written in such a way that can provide a comprehensive and simple route to new users, scientists and engineers working or wishing to work in the field of POFBGs: Describes the systems commonly employed for producing fiber Braggs gratings (FBGs) in silica fibers that can be used for the production of POFBGs; Explores different laser sources for the inscription of POFBGs; Explores the capability of using this technology at the visible and infrared region, in different fiber types (e.g., step-index, microstructured, unclad, highly birefringent) and in fibers composed of different polymer materials such as PMMA, doped PMMA, PS and ZEONEX; Reports the fabrication of different types of POF gratings, such as uniform, phase-shifted, tilted, chirped, and long-period gratings; Shows the opportunities of POFBGs for a variety of sensing applications. The insight to the use of POFBGs provides a vision for the opportunities of this fiber optic technology.

Polymer Optical Fiber Bragg Gratings

Polymer Optical Fiber Bragg Gratings Book
Author : Ricardo Oliveira,Lucia Maria Botas Bilro,Rogerio Nunes Nogueira
Publisher : CRC Press
Release : 2019-11-12
ISBN : 1000733661
Language : En, Es, Fr & De

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Book Description :

Polymer optical fibers (POFs) have been regarded as a viable alternative to silica fibers in a variety of sensing applications. Fiber optic sensors offer key advantages over other sensing technologies, which include immunity to electromagnetic interference, compact, lightweight, multiplexing capability, and higher sensitivity. This book gives an overview of the polymer optical fiber Bragg grating (POFBG) technology over the last 20 years, covering aspects related to the fiber Bragg grating fabrication and also sensing applications. The book is split into five chapters, and it is written in such a way that can provide a comprehensive and simple route to new users, scientists and engineers working or wishing to work in the field of POFBGs: Describes the systems commonly employed for producing fiber Braggs gratings (FBGs) in silica fibers that can be used for the production of POFBGs; Explores different laser sources for the inscription of POFBGs; Explores the capability of using this technology at the visible and infrared region, in different fiber types (e.g., step-index, microstructured, unclad, highly birefringent) and in fibers composed of different polymer materials such as PMMA, doped PMMA, PS and ZEONEX; Reports the fabrication of different types of POF gratings, such as uniform, phase-shifted, tilted, chirped, and long-period gratings; Shows the opportunities of POFBGs for a variety of sensing applications. The insight to the use of POFBGs provides a vision for the opportunities of this fiber optic technology.

Fiber optic Sensors Based on Fiber Bragg Gratings for Dynamic Strain Measurement

Fiber optic Sensors Based on Fiber Bragg Gratings for Dynamic Strain Measurement Book
Author : Yupeng Zhu
Publisher : Unknown
Release : 2020
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

This dissertation investigates how to measure dynamic strain including quasi-static strain, vibration, acoustic emission, and ultrasonic waves with fiber Bragg grating based optical fiber sensors. Fiber optic sensors are inherently immune to electromagnetic interference, light weight, small size, corrosion resistance, and capable of multiplexing. With narrow linewidth tunable lasers, the strain induced spectral shift of the Bragg wavelength of the sensor can be demodulated. However, the spectrum of the uniform fiber Bragg grating can not satisfy the sensitivity, resolution, and dynamic range requirements. To address these challenges, we propose and demonstrate a sensor structure based on chirped fiber Bragg gratings combined with Fabry-Perot cavity. Taking advantage of large bandwidth provided by the chirped fiber Bragg grating and the narrow resonance peaks formed by the Fabry-Perot cavity, it can simultaneously achieve high resolution, high sensitivity, and large dynamic range measurement.The second chapter provides the theoretical analysis and numerical simulation on the spectra of chirped fiber Bragg gratings and Fabry-Perot cavities. Based on such context, we are motivated to propose a dynamic strain measurement scenario which take advantage of both high resolution and large dynamic range of the sensor. Due to the different and unique spectral intervals of the notches in the wavelength bandwidth used for measurement, the spectral notches can be unambiguously recognized in each spectral frame without the need for fringe counting. Using this principle, we demonstrated high-resolution and absolute static and dynamic strain measurement. In chapter three, we study the acoustic emission detection with the proposed sensor based on high finesse short cavity structure and explore the potential of using the narrow resonance peak as the laser locking source to reduce the laser noise while functions as ultrasound sensor. Additionally, since the Bragg wavelength is highly related to the polarization, birefringence causes polarization dependent center-wavelength shift. We propose a 90-degree rotation method for grating fabrication in the UV laser beam side exposure technique to reduce the birefringence. Therefore the sensor is insensitive to the polarization state of the laser, the ultrasound detection system can be simplified by omitting the polarization controller. Chapter four expands our work on ultrasonic sensor by using coiled fiber with low-finesse Fabry-Perot interferometer formed by two chirped fiber Bragg gratings. Our work has successfully demonstrated a strain and temperature insensitive fiber-optic ultrasonic detection by combining the coil structure, wide spectral range, and quadrature demodulation. The ultrasonic sensing scheme is immune to the laser wavelength drift, therefore no wavelength locking mechanism is needed. Future work will continue on exploring new design of the sensor structure and optimizing the measurement system to further improve the feasibility while reduce the overall cost.

Fiber Bragg Gratings

Fiber Bragg Gratings Book
Author : Evangelos Vasilios Diatzikis
Publisher : Unknown
Release : 1998
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

ABSTRACT: Bragg gratings were written into the core of an optical fiber using a phase mask and a continuous wave ultraviolet laser. The gratings exhibited a temperature induced shift in the Bragg wavelength. Fiber samples were exposed to hydrogen loading which resulted in enhanced photosensitivity of the fiber core, shorter writing times, and higher reflecting gratings. Phase shifted Bragg gratings were fabricated by utilizing the spatial modes of the ultraviolet laser during writing. A demodulation technique for fiber Bragg grating sensors is presented. It is based on the generation of an electrical carrier by using a modulated multimode laser diode to illuminate the fiber grating. The change in Bragg wavelength is measured by tracking the phase of the carrier at the detector output in either an open or a closed loop scheme. Experimental data was obtained for both strain and temperature measurements. The system showed a strong immunity to optical power fluctuations. The application of this demodulation scheme to a multiplexed sensing system is also demonstrated.

An Introduction to Optoelectronic Sensors

An Introduction to Optoelectronic Sensors Book
Author : Giancarlo C. Righini
Publisher : World Scientific
Release : 2009
ISBN : 9812834133
Language : En, Es, Fr & De

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Book Description :

"Preface -- Part I: Optoelectronic Sensors Technologies -- 1. Fiber and Integrated Optics Sensors: Fundamentals and Applications G. C. Righini, A. G. Mignani, I. Cacciari and M. Brenci -- 1. Introduction -- 2. Fiber and Integrated Optics: Fundamentals of Waveguiding -- 3. Waveguide Sensors: Basic Working Principle -- 4. Fiber Optic Sensors -- 5. Long-Period Optical Fiber Grating Sensors -- 6. Micro-structured Fiber Sensors -- 7. Integrated Optic Sensors -- 8. Conclusions -- References -- 2. Fiber Bragg Grating Sensors: Industrial Applications C. Ambrosino, A. Iadicicco, S. Campopiano, A. Cutolo, M. Giordano and A. Cusano -- 1. Introduction -- 2. Fiber Bragg Gratings History -- 3. Fiber Bragg Gratings as Sensors -- 4. Civil Applications -- 5. Aerospace Applications -- 6. Energy Applications -- 7. Oil and Gas Applications -- 8. Transport Applications -- 9. Underwater Applications -- 10. Perspective and Challenges -- References -- 3. Distributed Optical Fiber Sensors R. Bernini, A. Minardo and L. Zeni -- 1. Introduction -- 2. Linear Backscattering Systems -- 3. Non-Linear Backscattering Systems -- 4. Non-Linear Forward-Scattering Systems -- 5. Conclusions -- References -- 4. Lightwave Technologies for Interrogation Systems of Fiber Bragg Gratings Sensors D. Donisi, R. Beccherelli and A. d'Alessandro -- 1. Introduction -- 2. Operating Principle of the Fiber Bragg Grating Sensor -- 3. FBG Interrogation Techniques -- 4. An Integrated Tunable Filter using Composite Holographic Grating -- 5. POLICRYPS Filterbased FBG Sensors Interrogation -- 6. Conclusions -- Acknowledgments -- References -- 5. Surface Plasmon Resonance: Applications in Sensors and Biosensors R. Rella and M. G. Manera -- 1. Introduction -- 2. SPR Theory -- 3. Optical Sensors based on Surface Plasmon Resonance -- 4. Application of SPR in Chemical Sensors and Biosensors -- 5. SPR Instrumentation: From Traditional SPR Instrument to SPR Imaging -- 6. Future Capabilities -- References -- 6. Microresonators for Sensing Applications S. Berneschi, G. Nunzi Conti, S. Pelli and S. Soria -- 1. Introduction -- 2. Whispering Gallery Modes in a Microsphere -- 3. WGM Resonators: Applications in Sensing -- Acknowledgments -- References -- 7. Photonic Crystals: Towards a Novel Generation of Integrated Optical Devices for Chemical and Biological Detection A. Ricciardi, C. Ciminelli, M. Pisco, S. Campopiano, C. E. Campanella, E. Scivittaro, M. N. Armenise, A. Cutolo and A. Cusano -- 1. Introduction -- 2. Photonic Crystals 190; Fundamental Principles -- 3. Functional Photonic Band Gap Components and Devices -- 4. Photonic Crystals for Chemical and Biological Sensing -- 5. Photonic Crystal Fibers Sensors -- 6. Perspectives and Challenges -- References -- 8. Micromachining Technologies for Sensor Applications P. M. Sarro, A. Irace and P. J. French -- 1. Introduction -- 2. Bulk Micromachining -- 3. Surface Micromachining -- 4. Characterization of Thin Film Membranes -- 5. Conclusions and Outlook -- References -- 9. Spectroscopic Techniques for Sensors S. Pelli, A. Chiasera, M. Ferrari and G. C. Righini -- 1. Introduction -- 2. Absorption, Reflectance and Transmission Measurements -- 3. Luminescence Measurements -- 4. Raman and Brillouin Measurements -- 5. Conclusions -- References -- 10. Laser Doppler Vibrometry P. Castellini, G. M. Revel". -- OCLC.

Optical Fiber Sensor Technology

Optical Fiber Sensor Technology Book
Author : K. T. V. Grattan,L.S. Grattan,B. T. Meggitt
Publisher : Springer Science & Business Media
Release : 2000-09-30
ISBN : 9780792379461
Language : En, Es, Fr & De

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Book Description :

Optical Fiber Sensor Technology, Advanced Applications - Bragg Gratings and Distributed Sensors, builds upon the foundations of the subject in the preceding four volumes of this series, concentrating as they do upon both applications and the technology of advanced optical fiber sensors. Previous volumes have covered the fundamentals of the field, devices and systems and chemical and environmental monitoring. This volume deals with a range of highly topical sensor devices and commercial systems, with considerable emphasis upon one of the most important areas, Bragg gratings in fibers, their fabrication and applications in advanced sensor systems and the principles and use of distributed fiber optic sensors. The volume is well illustrated and referenced, pointing to hundreds of key publications accessible in the open literature. It draws upon a group of authors with an international reputation for their work in the area, carefully edited into a coherent and logical text by the editors, based on their considerable experience in the field. This book series will provide an invaluable source for researchers, engineers and advanced students in the field of optical fibers, optoelectronics and measurement and sensing.

High Temperature Sensors Based on Hydrogen Loaded Fiber Bragg Gratings

High Temperature Sensors Based on Hydrogen Loaded Fiber Bragg Gratings Book
Author : Bowei Zhang
Publisher : Unknown
Release : 2004
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download High Temperature Sensors Based on Hydrogen Loaded Fiber Bragg Gratings book written by Bowei Zhang, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Phase shifted Fiber Bragg Grating Sensors

Phase shifted Fiber Bragg Grating Sensors Book
Author : Jerry Angelichio
Publisher : Unknown
Release : 1999
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

ABSTRACT: Applications of fiber Bragg gratings(FBG) in optical communication and sensing will be briefly discussed. Theory of fiber gratings with a phase induced discontinuity will be presented. The results of fabrication by introducing fiber Bragg gratings to a phase induced discontinuity using a post-processing technique will also be presented. Techniques for fabricating gratings with multiple pass-bands will also be shown. The phase-shifted FBG shows a higher sensitivity to temperature and strain than a regular FBG. The sensitivity to temperature (minimal change that can be detected) is 0.01 OCIVH-Z which is has a higher sensitivity than 0.05 'CI-VFH-z reported by a regular FBG. The grating also showed a wavelength shift of 0.01 I nm/'C when it was tracked during exposure to temperature changes. The grating's sensitivity to AC strain was 1.059 [email protected], which proved to be one order of magnitude higher than that of a regular FBG. Applications for phase-shifted Bragg gratings to function as "smart" sensors will be discussed.

Fiber Bragg Gratings in Polymer Optical Fibers

Fiber Bragg Gratings in Polymer Optical Fibers Book
Author : Nico Gérard Harbach
Publisher : Unknown
Release : 2008
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Fiber Bragg Gratings in Polymer Optical Fibers book written by Nico Gérard Harbach, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Full Matlab Code for Synthesis and Optimization of Bragg Gratings

Full Matlab Code for Synthesis and Optimization of Bragg Gratings Book
Author : Fethallah Karim
Publisher : Cambridge Scholars Publishing
Release : 2018-11-07
ISBN : 1527521192
Language : En, Es, Fr & De

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Book Description :

This book presents a theoretical description of fiber Bragg gratings, focusing on channels’ densification and the tunability of Bragg filters. It also includes a full Matlab code for the synthesis and optimization of several kinds of fiber Bragg gratings by using the directed tabu search, the simulated annealing method and the genetic algorithm. Physical and optical parameters of uniform, chirped and sampled fiber Bragg gratings are then reconstructed with these algorithms.

Processing of Signals from Fiber Bragg Gratings Using Unbalanced Interferometers

Processing of Signals from Fiber Bragg Gratings Using Unbalanced Interferometers Book
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Release : 2018-06-24
ISBN : 9781721781805
Language : En, Es, Fr & De

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Book Description :

Fiber Bragg gratings (FBG) have become preferred sensory structures in fiber optic sensing system. High sensitivity, embedability, and multiplexing capabilities make FBGs superior to other sensor configurations. The main feature of FBGs is that they respond in the wavelength domain with the wavelength of the returned signal as the indicator of the measured parameter. The wavelength is then converted to optical intensity by a photodetector to detect corresponding changes in intensity. This wavelength-to-intensity conversion is a crucial part in any FBG-based sensing system. Among the various types of wavelength-to-intensity converters, unbalanced interferometers are especially attractive because of their small weight and volume, lack of moving parts, easy integration, and good stability. In this paper we investigate the applicability of unbalanced interferometers to analyze signals reflected from Bragg gratings. Analytical and experimental data are presented. Adamovsky, Grigory and Juergens, Jeff and Floyd, Bertram Glenn Research Center NASA/TM-2005-213594, E-15062

Chromatic Dispersion Compensation Using Fiber Bragg Gratings

Chromatic Dispersion Compensation Using Fiber Bragg Gratings Book
Author : Sree Rajya Lakshmi Popury
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

In this project, the Chromatic Dispersion is studied in detail with the ways to reduce it using different techniques. The focus of this project is in Fiber Bragg Grating (FBG) technique as a means to reduce dispersion. For the implementation of FBG, a supportive software tool called Optisystem-10 is used. Using this tool, the Chromatic Dispersion is first simulated to analyze the performance of the system before implementing FBG. The first method that is implemented, uses ideal FBG component that compensates the total dispersion, retrieving the actual signal. This method is very successful but not practical. So, the second method uses the practical FBG and its performance is analyzed by varying its parameters for an optimal output. The third method uses OptiGrating, a component that is available in the OptiSystem-10 library. OptiGrating is a component that is predefined and a software implementation of the second method that is ready to use without any user interaction. It is found from this study that the second method is best to bring the dispersion down to 83.53% while keeping the program proactive with the user.

Optical Fiber Bragg Gratings

Optical Fiber Bragg Gratings Book
Author : David A. Brown,Quin Zhang
Publisher : Unknown
Release : 1995
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Optical Fiber Bragg Gratings book written by David A. Brown,Quin Zhang, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Development of Fiber Bragg Grating Strain Thermal and Magnetic Sensors for Smart Structure Applications

Development of Fiber Bragg Grating Strain  Thermal  and Magnetic Sensors for Smart Structure Applications Book
Author : Michael Christian Emmons
Publisher : Unknown
Release : 2012
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Optical fiber Bragg gratings offer great potential for sensing pertinent phenomena in a wide range of applications. Such range is demonstrated in this dissertation with the utilization of fiber Bragg gratings (FBGs) in two different fields of research. Both of these fields are encompassed by an overarching goal of developing smart structures capable of providing necessary feedback to enhance performance and safety. FBGs are employed in the field of structural health monitoring by measuring strain and detecting damage when embedded within AS4/3501-6 quasi-isotropic composites. The grating sensors are also utilized in the field of ferroic materials to explore novel methods of coupling external phenomena to the optical fiber reflection signal. The desire to create smart structures is carried out by developing the Bragg grating measurements system created by NASA Dryden Flight Research Center. This development involves studying the validity of strain measurements provided by embedded Bragg gratings and expanding the capabilities of the measurement system by coupling the sensors to additional types of external phenomena such as magnetic fields. Theoretical and experimental work is carried out for both phases of the dissertation. In the strain sensing phase, photoelasticity, electromagnetic wave propagation, and coupled mode theory are applied to understand the theoretical behavior of FBGs. Mechanical loads are applied to composite specimens with embedded FBGs to monitor the response of the reflection signal. Finite element analysis is then performed to further clarify how the load is transferred from the host composite to the embedded fiber. In the thermal and magnetic sensing phase, a description is given for the fabrication and experimental results of coating FBGs with thin film ferroic materials. Next, a more extensive electromagnetic wave propagation theory is described in the context of manipulating various fiber characteristics for magnetic field coupling. A FBG magnetometer is then fabricated and a magneto-optic coupling is demonstrated experimentally with an externally applied magnetic field.

Side polished and Tilted Fiber Bragg Grating Refractive Index Sensors for Structural Health Monitoring Applications

Side polished and Tilted Fiber Bragg Grating Refractive Index Sensors for Structural Health Monitoring Applications Book
Author : Chun-Fan Chan
Publisher : Unknown
Release : 2007
ISBN : 9780494358085
Language : En, Es, Fr & De

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Book Description :

Fiber Bragg gratings are one of several fiber optic sensor technologies currently being used in structural health monitoring systems. When the effective index of a fiber Bragg grating is changed by external environmental variations (such as temperature, acidity, etc), the wavelength at which the incident light experiences a maximum reflection from the grating will correspondingly shift. To detect small environmental variations that occur during certain chemical processes, one can enhance the sensitivity using either side-polished or tilted fiber Bragg gratings. Enhanced sensitivity in each case is achieved by polishing the fiber on one side or writing the grating at some tilt angle. Side-polished grating sensors having a 1542 nm Bragg wavelength and cladding thickness values from 1--3 mum provide a maximum refractive index sensitivity of 7x10-4. Tilted grating sensors having a 1566 nm Bragg wavelength and written at 4° tilt angle provide a maximum refractive index sensitivity of 5x10-5. Experiments on the side-polished and tilted gratings were done by immersing the fiber sensors in solutions with the index range 1.31-1.44. Since tilted gratings have enhanced sensitivity and the advantage of maintaining their full mechanical strength, they show greater promise as reliable sensors for structural health monitoring applications.

Single and Dual parameter Fiber Bragg Grating Sensors Embedded in Metallic Structures

Single and Dual parameter Fiber Bragg Grating Sensors Embedded in Metallic Structures Book
Author : Philippe Meszaros
Publisher : Unknown
Release : 2017
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Fiber Bragg Gratings (FBGs) are optical fiber sensors that can be used to measure both strain and temperature. Due to their robustness, FBG sensors can be more easily embedded into materials than traditional electronic sensors. In this thesis a procedure to embed FBG sensors into metallic structures was developed. This embedding procedure used traditional machining, along with adhesive to embed FBGs into metallic parts. This new embedding procedure requires no specialized equipment and allows any metallic part to be retrofitted with embedded sensors.

Fiber Bragg Grating Add drop Filter Characterization and Performance Testing

Fiber Bragg Grating Add drop Filter Characterization and Performance Testing Book
Author : Amrita G. Khemchandani
Publisher : Unknown
Release : 2001
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Fiber Bragg Grating Add drop Filter Characterization and Performance Testing book written by Amrita G. Khemchandani, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.