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9 - 13 April 2017
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Fiber optic sensors

Fiber Optic Sensors at SPIE Defense + Commercial Sensing 2017

Learn from experts on all aspects of fiber optic sensor technology based on conventional and specialty optical fibers, including photonic crystal fibers and metalized fibers, for applications such as aerospace, civil structures, defense, medical, and environmental applications.

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Come to the free expo

These companies exhibited at the 2016 event and offered fiber optic sensor solutions
Click the links below to visit the respective page on our Exhibitor List
 • AFL  • Nufern
 • attocube  • Pure Photonics, LLC
 • Cybel, LLC  • PVP Advanced EO Systems, Inc.
 • Gooch & Housego  • Reynard Corporation
 • New England Optical Systems  • Sinclair Manufacturing Co.
   

Technical presentations

SPIE Defense + Commercial Sensing 2017 features 1,700 technical papers. Below are conferences and papers that include significant technical content related to fiber optic sensors. Below, find 35+ papers identified as containing content that may be of particular interest.

Preview the entire Commerical + Scientific Sensing and Imaging symposium

Review the applicable conference:

Fiber Optic Sensors and Applications

Browse the 35+ applicable papers below; listed by conference and paper number.

Plastic fiber optic biosensor for Brazilian plant toxin
Paper 10183-15

Author(s):  Romulo Santiago de Lima Garcia, Brazilian Army Technological Ctr. (Brazil), et al.
Conference 10183: Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVIII
Session 3: Explosive Detection

A biosensor for direct analysis of toxin from a poisonous brazilian plant by use of a plastic optical fiber functionalized with sensitive enzyme is disclosed. Molecular recognizing enzymes are immobilized onto the surface of plastic optical fibers and undergo signals when the toxin is introduced into the local environment of the sensor. Recognizing events are detected by the use of a photodetector with another optoelectronic components. This analytical device finds uses in detection and screening of novel toxins from plants when they are deployed at field. Possible applications include ambiental monitoration, individual exposure sensor and pharmacological studies of antidote or decontamination effectiveness (e.g. dose-response).


Non-invasive brain-computer interface: challenges and opportunities
Paper 10194-57

Author(s):  Mark A. Chevillet, Johns Hopkins Univ. (United States), et al.
Conference 10194: Micro- and Nanotechnology Sensors, Systems, and Applications IX
Session 11: Brain-Computer Interface: From Restoration to Augmentation and the Critical Challenges Involved

The development of Non-Invasive Brain Computer Interface (NiBCI) technologies has been motivated by the tremendous success seen with implanted devices, as demonstrated by DARPA’s Revolutionizing Prosthetics program, for example. This talk will discuss efforts to overcome several major obstacles to viability including approaches that promise to reduce spatial and temporal resolution. Optical approaches in particular will be highlighted and the potential benefits of both Blood-Oxygen Level Dependent (BOLD) and Fast Optical Signal (FOS) will be discussed.


Research and development program in fiber optic sensors and distributed sensing for high temperature harsh environment energy applications
Paper 10194-61

Author(s):  Robert R. Romanosky, National Energy Technology Lab. (United States), et al.
Conference 10194: Micro- and Nanotechnology Sensors, Systems, and Applications IX
Session 12: Novel Harsh Environment Sensors for Energy Applications


Nanostructured sapphire optical fiber for sensing in harsh environments
Paper 10194-62

Author(s):  Henry Du, Stevens Institute of Technology (United States), et al.
Conference 10194: Micro- and Nanotechnology Sensors, Systems, and Applications IX
Session 12: Novel Harsh Environment Sensors for Energy Applications

The potential of sapphire fiber for sensing in harsh environments has long been recognized. Development of robust cladding has remained elusive due largely to challenges associated with suitable materials and their deposition. Progress in developing structurally and chemically stable cladding on sapphire fiber will usher in new sensor design and capabilities. This talk will highlight our work on the development of all-alumina nanostructured sapphire fiber sensors: singe crystal sapphire fiber as the waveguide core and nanoporous alumina coating with highly organized pore channels vertically aligned to the fiber surface as the cladding.


Exhaust temperature profiling of a gas turbine combustor simulator using ultra-fast laser induced fiber Bragg grating (FBG) arrays
Paper 10194-63

Author(s):  Robert B. Walker, National Research Council Canada (Canada), et al.
Conference 10194: Micro- and Nanotechnology Sensors, Systems, and Applications IX
Session 12: Novel Harsh Environment Sensors for Energy Applications

Femtosecond Infrared (fs-IR) written fiber Bragg gratings (FBGs), have demonstrated great potential for extreme sensing. Such conditions are inherent to the advanced gas turbine engines under development to reduce greenhouse gas emissions; and the ability to measure temperature gradients in these harsh environments is currently limited by the lack of sensors and controls capable of withstanding the high temperature, pressure and corrosive conditions present. This paper discusses fabrication and deployment of several fs-IR written FBG arrays, for monitoring temperature gradients of a gas turbine combustor simulator. Results include: contour plots of measured temperature gradients, contrast with thermocouple data, discussion of deployment strategies and comments on reliability.


High spatial resolution fiber optical sensors for simultaneous temperature and chemical sensing for energy industries
Paper 10194-64

Author(s):  Kevin P. Chen, Univ. of Pittsburgh (United States), et al.
Conference 10194: Micro- and Nanotechnology Sensors, Systems, and Applications IX
Session 12: Novel Harsh Environment Sensors for Energy Applications

Optical fibers are widely used sensing platforms. Both silica and sapphire fiber optical sensors have been developed to perform various physical measurements such as temperature, strain, and pressures sensing at high temperatures for energy applications.This paper utilizes optical fibers as high-temperature sensor platforms, through engineering and on-fiber integration of functional metal oxide sensory materials, we report the development of an integrated sensor solution to perform simultaneous temperature and chemical measurements for high-temperature energy applications. This paper presents a novel sensor solution to for design, control, and optimization of fossil fuel and nuclear power generations.


Functionalized optical fiber sensor material and device research at the National Energy Technology Laboratory
Paper 10194-65

Author(s):  Paul R. Ohodnicki, National Energy Technology Lab. (United States), et al.
Conference 10194: Micro- and Nanotechnology Sensors, Systems, and Applications IX
Session 12: Novel Harsh Environment Sensors for Energy Applications

An overview of functionalized optical fiber sensor material and device research within the National Energy Technology Laboratory Research and Innovation Center will be presented. Current efforts target enabling materials as functional sensor layers as well as high temperature optical fibers for applications spanning power generation, oil & gas resource recovery, the natural gas midstream infrastructure, carbon sequestration, and power transformer monitoring. New advances in materials, sensing principles, mechanisms for self powered sensors, and first principles calculations seeking to understand basic optical and electronic properties of sensing materials will be discussed.


Mars or Bust! 40 years of fiber optic sensor development
Paper 10208-1

Author(s):  Eric Udd, Columbia Gorge Research LLC (United States), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 1: Fiber Optic Sensing for Aerospace

For forty years fiber optic sensor technology has been developed to support aerospace applications. This paper provides a tutorial overview of developments that started with improvements to launch vehicles and lead to fiber sensors playing an active role in the exploration of Mars.


Optical frequency domain reflectometry for aerospace applications
Paper 10208-2

Author(s):  Stephen T. Kreger, Luna Innovations Inc. (United States), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 1: Fiber Optic Sensing for Aerospace

Optical Frequency Domain Reflectometry (OFDR) is the basis of an emerging high-definition distributed fiber optic sensing (HD-FOS) technique that provides and unprecedented combination of resolution and sensitivity. We examine aerospace applications that benefit from HD-FOS, such as for defect detection, FEA model verification, and structural health monitoring. We describe how HD-FOS is used in applications spanning the full design chain, review progress with sensor response calibration and certification, and examine the challenges of data management through the use of event triggering, synchronizing data acquisition with control signals, and integrating the data output with established industry protocols and acquisition systems.


Concept, design, fabrication and characterization of an FBG-transducer for a scanning laser-based fiber-optic interrogator
Paper 10208-3

Author(s):  Nader Kuhenuri Chami, Technische Univ. München (Germany), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 1: Fiber Optic Sensing for Aerospace

The Hybrid Sensor Bus is a space-borne temperature monitoring system for telecommunication satellites, wherein the system combines electrical transducers and Fiber-Bragg-Grating (FBG) sensors. The tailored FBGs are to be mounted on a space-qualified interface for an improved performance and FBG protection. Beside characterization and modelling of the FBG sensors in order to measure more accurate temperatures, mechanically induced stress on the FBG has to be efficiently decoupled. The adhered transducers are characterized by a specially designed small-size thermal-vacuum chamber and verified by a 4-point bending-test. An appropriate space-qualified prototype for the Heinrich-Hertz in-orbit verification mission could thus be provided.


Shupe and elastooptic effects of a fiber sensing coil with practical quadruple winding
Paper 10208-5

Author(s):  Serdar Ogut, Bilkent Univ. (Turkey), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 2: Interferometric and Gyroscope Sensors

Thermally induced bias error is one of the main performance limits for the Fiber Optic Gyroscopes (FOGs). We reviewed the thermal sensitivity of FOG in detail and created a simulation environment by the Finite Element Method (FEM). Thermal sensitivity analysis is based on Shupe and elastooptic effects. Elastooptical interactions are modeled by using the two different FEM simulations and homogenization-dehomogenization processes. FEM simulations are validated by comparing the results with a laboratory FOG setup. We report the changes in the error characteristics for practical quadruple winding patterns.


Fiber optic gyroscope coils: performance characterization
Paper 10208-6

Author(s):  Mansoor Alam, Nufern (United States), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 2: Interferometric and Gyroscope Sensors

Precision guidance of smart systems in Global Navigation Satellite System (GNSS) signal denied environments has renewed interest in low cost navigation grade Interferometric Fiber Optic Gyroscopes (IFOG). This paper deals with performance characterization of fiber optic sensing coils used in IFOG. Data are presented on the optical loss, polarization extinction ratio and coherence in the -60oC to +90oC operating temperature range. Data suggests that navigation grade sensing coils can be realized in a relatively small footprint with careful choice of fiber, winding epoxy and epoxy cure cycle.


Fiber interferometers for traffic applications
Paper 10208-8

Author(s):  Vladimír Vašinek, VŠB-Technical Univ. of Ostrava (Czech Republic), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 2: Interferometric and Gyroscope Sensors

This paper describes the innovative way for speed measurement of vehicles during traffic. The described system is based on the usage of optical fibers in M-Z interferometer and against the conventional sensors they offer a wider application potential, benefits of implementing solutions and due to the massive expansion of fiber optic cables along roads in the telecommunications needs the possibility of direct connection to the existing infrastructure. The theoretical part summarizes the principle of operation and potential usage not only for the vehicles speed measurements but for analysis of particular. The practical part contains a description of assembled prototypes of fiber optic sensor units, which operate on the principle of light interference and initial tests carried out of the proposed sensor system including evaluation.


Modified single crystal fibers for distributed sensing applications
Paper 10208-11

Author(s):  Michael P. Buric, National Energy Technology Lab. (United States), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 3: New Avenues in Fiber Optic Sensing

Single crystal fibers like those made from sapphire are capable of operating at high temperatures. This work aims to construct single-crystal optical fiber sensors capable of providing environmental data in applications where temperatures exceed 1000C and standard silica fibers cease to provide useful information. In many cases the functionalization of a single-crystal fiber with conventional sensing materials or structures can decrease the maximum operating temperature of the fiber-system. Here, we explore the functionalization of these fibers using methodologies intrinsic to the crystal growth process which do not severely reduce their operating temperature range. While operating a laser-heated pedestal growth system, we continuously vary parameters such as fiber diameter to produce novel single-crystal linear distributed-sensing devices and report on their efficacy in a relevant sensing environment.


Fast response high sensitivity miniature fiber optic temperature sensor based on optical fiber core UV lithography
Paper 10208-12

Author(s):  Hyungdae Bae, Howard Univ. (United States), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 3: New Avenues in Fiber Optic Sensing

We present a fast response high sensitivity miniature fiber optic temperature sensor. The sensing polymer rod is fabricated by using a unique photolithography which exploits optical fiber core as a mask. By using this fabrication technique, the temperature sensing polymer rod is generated without using any conventional mask or expensive alignment system. Fast response time is obtained thanks to the small sensing structure made by the optical fiber core lithography (10 µm in diameter). High temperature sensitivity is also achieved by using the polymer material which has 98 times higher coefficient thermal expansion of silica material.


Long-distance distributed temperature measurement in double-ended configuration
Paper 10208-14

Author(s):  Xiaoguang Sun, OFS (United States), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 4: Distributed Fiber Optic Sensing

The maximum sensing distance in a Raman-based distributed temperature sensing (DTS) systems is limited by the weak backscattered anti-Stokes signals and the fact that the maximum input pump peak power is limited by onset of the stimulated Raman scattering (SRS) in the fiber. For a double-ended configuration the maximum sensing distance is even shorter since the sensing fiber length is doubled. We will propose a new measurement technique which can reduce the threshold of the SRS and allows long distance DTS with a low spatial resolution and high temperature accuracy.


Deep learning based multi-threat classification for phase-OTDR fiber optic distributed acoustic sensing applications
Paper 10208-16

Author(s):  Metin Aktas, ASELSAN A.S. (Turkey), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 4: Distributed Fiber Optic Sensing

This paper presents a deep learning based threat classification method aimed at use with a direct detection phase-OTDR based distributed acoustic sensing system. The proposed method uses a deep convolutional neural network trained with real sensor data. Experiments are conducted with an ITU-T G.652 fiber optic cable buried at one meter depth. The results show that by applying the proposed signal conditioning, event detection and classification methods, threat classification accuracies above 80% can be achieved with four typically observed threat classes, namely, walking, manual digging, vehicle vibration, and mechanical digging, at ranges of up to 30 km.


Experimental characterization of optical fiber architectures for distributed sensing applications
Paper 10208-17

Author(s):  Will Ray, Oak Ridge National Lab. (United States), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 4: Distributed Fiber Optic Sensing

A series of measurements designed to quantify and characterize the performance of various realizations of a distributed fiber optic sensing system is reported. The focus of these investigations is an apples-to-apples comparison of the response of distinct fiber designs and cabling architectures when they are exposed to controlled continuous-wave and transient standoff acoustic sources. Our analysis reveals significant differences among candidate fiber-sensing architectures enabling quantification of the fiber transduction efficiency in various environments. These results inform the selection of fibers and cabling for multiple sensing applications, as well as the interpretation of the responses received by interrogation systems.


Adapting optical technology to dynamic energy prices: fiber-optic sensing in the contemporary oilfield
Paper 10208-18

Author(s):  John L. Maida, Halliburton Energy Services (United States), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 5: Applications of Fiber Optic Sensors for Harsh Environments

The oil and gas industry is continually striving to produce more hydrocarbons and less waste. Many sensing techniques using optical fiber have been developed over the last three decades for all stages of well development. This paper reviews these optical sensing technologies, with particular emphasis on new applications and business drivers. Expected performance parameters of these new technologies are discussed, including their accuracy, resolution, stability, and operational lifetime. Environmental conditions, such as high hydrostatic pressures, high temperatures, shock, vibration, crush, and chemical exposure are also given. These optical technologies are expected to provide safe, reliable, cost-effective, and unprecedented monitoring solutions.


The evolution of optical fiber cable design for sensor applications
Paper 10208-19

Author(s):  Dean J. Yamasaki, AFL (United States), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 5: Applications of Fiber Optic Sensors for Harsh Environments

Harsh environment monitoring applications expose fiber optic sensors to conditions more severe than mainstream telecommunications. This includes high temperatures, high pressures, ionizing radiation and harsh chemical exposure that must be addressed in the cable design containing the fibers in order to extend the useful life of the fibers as much as practical. These operational environment typically exposes the optical fibers to much more extreme environments that are not prevalent in telecommunications. Some applications, due to their specialized nature, may drive one or more design aspects that are completely opposite of traditional optical cable designs. The focus of this paper/presentation is to compare/contrast sensing applications with traditional telecom applications, review the more significant design considerations, and outline several current design challenges necessary to enable value-added reliable cable deployments.


Optimization of optical fiber and cable for distributed acoustic sensing (DAS) and distributed strain sensing (DSS) applications: A real world study
Paper 10208-22

Author(s):  Bruce Chow, Corning Incorporated (United States), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 5: Applications of Fiber Optic Sensors for Harsh Environments


Applications of fiber optic sensors for heavy oil production
Paper 10208-23

Author(s):  Christopher S. Baldwin, Weatherford International Ltd. (United States), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 5: Applications of Fiber Optic Sensors for Harsh Environments

This paper will discuss the development and applications of Bragg grating-based array temperature sensing (ATS) that is used for SAGD heavy oil applications. A Bragg grating-based pressure and temperature gauge has also been developed and successfully implemented for SAGD monitoring applications. The sensing systems have demonstrated long lifetimes and reliable operation for many years in very hostile, hydrogen-rich environments. These wells typically have temperatures exceeding 250°C and pressures nearing 1,000 psi. The applications are ideally suited for the capabilities of fiber optic sensing and harsh environments.


Ultrafast photonic systems for FBG sensing in detonation and shock wave experiments
Paper 10208-24

Author(s):  George Rodriguez, Los Alamos National Lab. (United States), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 6: Fiber Bragg Grating Sensors

Ultrafast high speed photonics are shown to provide the necessary temporal and spectral information required for understanding FBG response under impulsive loading from either high explosive detonation or an inert shock wave interaction. Demonstration of both, chirped and uniform, silica based FBGs are presented for sensing under harsh conditions that vary from thermal ignition in high explosives to inert tracking of high pressure shock waves. Ultrafast laser based chirped pulse methods are used to time-stretch and streak the spectral response of the FBG to provide the information about material response under this type of loading.


Optimization of fiber Bragg grating parameters for sensing applications
Paper 10208-25

Author(s):  Devrez M. Karabacak, Fugro (Netherlands), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 6: Fiber Bragg Grating Sensors

Sensing with Fiber Bragg Gratings (FBG) is increasingly being deployed in the field and diversifying from its traditional use in temperature and strain detection. Furthermore, the new generation of high resolution interrogators coupled with a growing variety of FBGs, are opening up many possible applications. For FBGs to fulfill their potential and be employed in diverse and challenging sensing applications, there needs to be a clear definition and application-specific optimization of Bragg grating specifications. Here, we demonstrate the critical influence of the various grating parameters on performance of both static and dynamic sensors, using a variety of grating types.


Force and pressure sensing using fiber grating sensors
Paper 10208-26

Author(s):  Ingrid Scheel, Columbia Gorge Research LLC (United States), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 6: Fiber Bragg Grating Sensors

Fiber grating sensors may be used to measure force and pressure in a variety of ways. This paper will overview past approaches and introduce a new method to measure force and pressure using fiber grating sensors.


Performance assessment of a fiber Bragg grating sensor network inside a hydro power dam using optical backscatter reflectometry
Paper 10208-27

Author(s):  Christoph Monsberger, Technische Univ. Graz (Austria), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 6: Fiber Bragg Grating Sensors

Nowadays, many hydro power plants are modified to pump storage operation. This changes the loading conditions and thus requires new monitoring concepts. We developed a FBG based monitoring system which was installed inside a hydro power dam in 2013. In this paper, we report about detailed investigations of this network using an optical backscatter reflectometer. The different strain profiles along the FBG sensors were analyzed. Moreover, the different wavelengths of the FBGs are determined in the frequency domain to verify the results of a classical FBG interrogator. These results and further laboratory studies prove the suitability of the FBG system.


Design, implementation and characterization of an FBG-emulator for a scanning laser-based fiber-optic interrogator
Paper 10208-29

Author(s):  Nader Kuhenuri Chami, Technische Univ. München (Germany), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session 6: Fiber Bragg Grating Sensors

Hybrid Sensor Bus is a space-borne temperature monitoring system for telecommunication satellites combining electrical and fiber-optical FBG (Fiber Bragg Grating) sensors. Currently there is no method available for testing the functionality and robustness of the system without setting up an actual sensor-network implying numerous FBG sensors in which each has to be heated/cooled individually. As a verification method of the mentioned system, FBG reflection based scanning laser interrogator, an FBG emulator is implemented to emulate up to 10000 sample points per second. This concept introduces a series of advantages which will be evaluated based on measurement results. TBC!


Influence of different encapsulation types and shapes of polydimethylsiloxane on the temperature sensitivity of the FBG
Paper 10208-30

Author(s):  Jan Nedoma, VŠB-Technical Univ. of Ostrava (Czech Republic), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session PWed: Posters-Wednesday


Impact of fixing materials on the frequency range and sensitivity of the fiber-optic interferometer
Paper 10208-31

Author(s):  Jan Nedoma, VŠB-Technical Univ. of Ostrava (Czech Republic), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session PWed: Posters-Wednesday


Fiber optic sensor encapsulated in polydimethylsiloxane for monitoring heart pulse
Paper 10208-32

Author(s):  Marcel Fajkus, VŠB-Technical Univ. of Ostrava (Czech Republic), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session PWed: Posters-Wednesday


Analysis of the impact of the deposition optical fibers on the measuring of deformation with a distributed system
Paper 10208-33

Author(s):  Marcel Fajkus, VŠB-Technical Univ. of Ostrava (Czech Republic), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session PWed: Posters-Wednesday


Research on an optimized optical fiber acceleration sensor for well logging
Paper 10208-35

Author(s):  Duo Yi, Institute of Ocean Research, Peking Univ. (China), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session PWed: Posters-Wednesday

The optical fiber acceleration sensor owns exceptional advantages in various industrial and military applications due to its high sensitivity, immunity to electromagnetic interference and easy to form sensing network etc. Especially in the case of well logging, it can ensure high performances even during a harsh underground environment. Actually, the sensor probe is the base of the sensing system and the optimizations of the sensor probe which is capable to adapt to the particular conditions are the objectives for the researchers. This study proposes a new probe structure based on the optical fiber Michelson interferometer, the structure sensitivity as well as the frequency response are investigated experimentally.


Feasibility evaluation of embedding optical fiber temperature sensor for the applications of new smart composite structure
Paper 10208-36

Author(s):  Duo Yi, Institute of Ocean Research, Peking Univ. (China), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session PWed: Posters-Wednesday

High temperature sensing is one of the basic requirements for various industrial manufacturing and military applications. The intensity modulated optical fiber sensor is considered as a promising candidate for these kinds of applications due to its relatively small size, low cost, and simple structure. In this study, a new smart composite structure was fabricated successfully by embedding an intensity modulated optical fiber sensor into thermal spray coating for temperature sensing. The thermal response test demonstrates higher temperature sensitivity of the embedded sensor (0.0035 dB/°C) when compared to that of the bare optical fiber. The thermal cycle test as well as the thermal stability test were also evaluated.


Real-time phase demodulation and data administration of distributed optical fiber vibration sensing system
Paper 10208-37

Author(s):  Mengzhe Qin, Tsinghua Univ. (China), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session PWed: Posters-Wednesday

Distributed optical fiber sensing system (DOFS) has great potential in areas of petroleum exploration and ocean defense. By algorithm optimization in different coding environment, the multi-point and real-time heterodyne demodulation of DOFS is achieved. In experiments, the length of the optical fiber is 500m, the spatial resolution is 5m and the system sampling rate is 100kHz, under which condition the data rate reaches up to 100MB/s and the system can stilled be demodulated timely. Based on this, by plotting the three-dimensional diagram (vibration intensity versus time and space), the whole DOFS can be detected continuously and accurately.


The influence of temperature loading on the optical fiber passive components
Paper 10208-38

Author(s):  Frantisek Perecar, VŠB-Technical Univ. of Ostrava (Czech Republic), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session PWed: Posters-Wednesday

The paper discuss about aging of the optical couplers in their burdened high temperature. The article focus on applied research and experimental development of resources for safety operation of optical networks in environment with higher temperature. It addresses issues of accelerated aging of optical fiber components in their burdened with high temperature. This article is devoted the impact of temperature loading on the SM optical FBT coupler with 8 branches. Optical passive component were exposed to temperature 95°C for 433 hours. Measurements are focused on the parameters of geometry of optical beam. The detect changes are useful to understand the phenomenon of accelerated ageing elements of optical networks.


Various optical fiber fixing methods for mechanical stress measurements
Paper 10208-39

Author(s):  Jakub Jaros, VŠB-Technical Univ. of Ostrava (Czech Republic), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session PWed: Posters-Wednesday

The monitoring of building structures deformations and testing of construction materials resilience are very important processes in the development and production of given materials and structures. This paper deals with the concrete deflection measurement using fiber optic distributed strain system. The own principle of the measurement evaluation is based on stimulated Brillouin scattering. In this paper, we explore the use of different types of optical fibers and the possibilities of their fixing. Above all, we are focusing on the possibility of their attachment to the measured objects. This is the most important step of the whole process that most affects the functionality and accuracy of measurement.


Masonry moisture measurement using the distributed temperature sensing system
Paper 10208-40

Author(s):  David Hrubý, VŠB-Technical Univ. of Ostrava (Czech Republic), et al.
Conference 10208: Fiber Optic Sensors and Applications XIV
Session PWed: Posters-Wednesday


Computational imaging through a fiber-optic bundle
Paper 10211-7

Author(s):  John Paul Dumas, Rutgers, The State Univ. of New Jersey (United States), et al.
Conference 10211: Compressive Sensing VI: From Diverse Modalities to Big Data Analytics
Session 2: CS for Radar and Optical Imaging

Our hypothesis is that adapting existing CS principles to fiber-bundle based optical systems will overcome the resolution limitation inherent in fiber-bundle imaging. We have previously examined the practical implementation of a highly parallel version of the single pixel camera. This paper reports an extension of the same architecture for fiber-bundle imaging and addresses some practical issues associated with imaging physical objects. Additionally, we incorporate the real-world optical aberrations and alignment errors inherent in the system to reduce image reconstruction errors. Finally, our experimental platform explores image formation under both coherent and incoherent illumination, permitting a comparative analysis of both conditions.


Lab-on-fiber optofluidic platform for in-situ study of therapeutic peptides and bacterial response (Rising Researcher Presentation)
Paper 10216-3

Author(s):  Fei Tian, Stevens Institute of Technology (United States), et al.
Conference 10216: Smart Biomedical and Physiological Sensor Technology XIV
Session 1: Biomolecular Sensing and Visualization

Therapeutic peptide has pioneered the field of biomedical applications for their attractive pharmacological profile with broad antibacterial spectrum, great efficacy and long life-span. We developed and demonstrated an innovative all-optical lab-on-fiber optofluidic platform (LOFOP) for in situ measurement of the bacteria attachment in a continuous manner with lytic peptide-containing LbL-coated long period grating (LPG) as its core. S. aureus suspension is introduced through the assembled optofluidic platform with the capillary and the peptide-coated LPG. The efficacy of the peptide-containing coating is evaluated in situ by monitoring the attachment of bacteria and the ensuing development of biofilms using the LPG.


Important Author Dates

Author Notification (Rescheduled)
13 December 2016

Manuscripts Due
13 March 2017


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