This chapter discusses fiber optic and integrated optic sensor concepts. Unfortunately, there is no standard method to categorize these sensor concepts. Here, fiber optic and integrated optic sensor concepts will be categorized by the primary modulation technique. These modulation techniques have been classified as: intensity, phase, wavelength, polarization, and time/frequency modulation. All modulate the output light with respect to changes in the physical or chemical property to be measured. Each primary modulation technique is then divided into fiber optic and integrated optic sections which are treated independently. For each sensor concept, possible sensor applications are discussed. The sensors and references discussed are not exhaustive, but sufficient to give the reader an overview of sensor concepts developed to date. Sensor multiplexing techniques such as wavelength division, time division, and frequency division will not be discussed as they are beyond the scope of this report. Tuma, Margaret L. Glenn Research Center RTOP 505-62-50...

A self-contained discussion of fiber optics - unlike any others available. The intent of this book is to provide the reader with an overall background in fiber optic sensors. The primary focus is on the optical sensing mechanisms and various optical configurations associated with a broad range of sensing functions that include switches, counters, displacement, temperature, pressure, flow, liquid level, chemical analysis, rotation (gyroscopes), electric and magnetic field measurements, distributive sensing, and smart skins. This edition includes three new chapters, and eight others have been updated to give the reader an overall background in fiber optic sensors and information on new market opportunities. This third edition is a must have for product design engineers, system design engineers, plant engineering/maintenance staff, and anyone involved in measurement, testing, quality and standards.Contents: Fiber Optic Fundamentals Intensity-Modulated Sensors Phase-Modulated Sensors Wavelength-Modulated Sensors Digital Switches and Counters Displacement Sensors Temperature Sensors Pressure Sensors Flow Sensors Level Sensors Magnetic and Electric Field Sensors Chemical Analysis Rotation Rate Sensors (Gyroscopes) Distributed Sensing Systems Smart Skins and Structures Market Opportunities.

Fibre Optics Is A Very Important Constituent Of Modern Information Technology. One Major Economic Benefit Offered By Fibre Optics Is Very High Information Transmission Rate At Low Cost Per Circuit-Km. The First Fibre Optic Telephone Link Went Public In Late 1970S. Ever Since, The Industrially Advanced Nations Around The World Have Been Striving To Deploy Fibre Optics In Almost Every Sector Of Communication Including Computer Networks And Data Links. Rarely, Since The Discovery Of Transistors, Have We Noticed Such A Fantastic Growth Rate Of A New Technology. As An Important Byproduct Of This Phenomenal Progress, A New Class Of Ultra-Sensitive Optical Sensors And Devices Based On Fibre Optics Has Emerged, Which Are Being Developed For Large Scale Use In Industrial And Biomedical Sectors. This Book Provides Semi-Tutorial Presentations Of The Fundamentals Of This Emerging Technology As Applied To Telecommunication And Sensor Development. Each Chapter, Contributed By Leading Researchers, Is Appended With A Large Number Of References To The Original Publications.The Book Is Broadly Divided Into Three Parts. The First Part Is Devoted To Propagation Effects In Optical Waveguides Including Polarization And Non-Linear Effects And Their Measurements. Fabrication And Cabling Technologies Of Optical Fibres Are Also Discussed In This Part. The Second Part Of The Book Deals With Optical Sources, Detectors, Integrated Optical Devices And System Designs Involved In Optical Communication Technology. The Last Part Of The Book Covers Topics Like Intensity Modulated And Interferometric Optical Fibre Sensors, In-Line Fibre Optic Components For Signal Processing And Multiplexing Of Optical Signals, And Application Of Fibre Optics In The Power Sector. The Extensive Coverage Should Prove Useful To Senior Undergraduate And Postgraduate Students, Researchers And Also To R & D Engineers Who Want A Tutorial Introduction To The Technologies Of Fibre Optic Telecommunication And Sensors.

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.

The most complete, one-stop reference for fiber optic sensor theory and application Optical Fiber Sensors: Fundamentals for Development of Optimized Devices constitutes the most complete, comprehensive, and up-to-date reference on the development of optical fiber sensors. Edited by two respected experts in the field and authored by experienced engineers and scientists, the book acts as a guide and a reference for an audience ranging from graduate students to researchers and engineers in the field of fiber optic sensors. The book discusses the fundamentals and foundations of fiber optic sensor technology and provides real-world examples to illuminate and illustrate the concepts found within. In addition to the basic concepts necessary to understand this technology, Optical Fiber Sensors includes chapters on: Distributed sensing with Rayleigh, Raman and Brillouin scattering methods Biomechanical sensing Gas and volatile organic compound sensors Application of nanotechnology to optical fiber sensors Health care and clinical diagnosis And others Graduate students as well as professionals who work with optical fiber sensors will find this volume to be an indispensable resource and reference.

This book builds on the foundation laid by Optical Fiber Sensor Technology, Volumes I and II. In those volumes the material covered encompassed the fundamentals and underlying principles of the subject and the progress in devices and their associated technology which has taken place in recent years. Optical Fiber Sensor Technology, Volume III concentrates on the applications of the technology and systems that rely upon it with a particular emphasis upon physical sensors. Edited by two scientists with a wide knowledge of the field and the community, the book brings together leading academics and practitioners in a comprehensive and incisive treatment of the subject. This is an essential reference both for researchers working and teaching in optical fiber sensor technology and for industrial users who need to be aware of current developments in optical fiber sensor devices and new areas of the associated technology.