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Relevant bibliographies by topics / Fibre optic

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Academic literature on the topic 'Fibre optic'

Author: Grafiati

Published: 4 June 2021

Last updated: 30 January 2023

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Journal articles on the topic "Fibre optic"

1

Andersson, P. O., A. Persson, L. Thyléen, and G. Edwall. "Fibre optic interferometer using integrated optics." Electronics Letters 21, no. 6 (1985): 245. http://dx.doi.org/10.1049/el:19850175.

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Kalamkarov, Alexander L., Anastasis V. Georgiades, Douglas O. MacDonald, and Stephen B. Fitzgerald. "Pultruded fibre reinforced polymer reinforcements with embedded fibre optic sensors." Canadian Journal of Civil Engineering 27, no. 5 (October 1, 2000): 972–84. http://dx.doi.org/10.1139/l00-034.

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The use of the pultrusion process for the manufacture of fibre reinforced polymer (FRP) composites with embedded fibre optic sensors is discussed. The specific application is the use of smart composite reinforcements for strain monitoring in innovative concrete bridges and structures. The Bragg grating and Fabry-Perot fibre optic sensors are embedded during the pultrusion of FRP rods and the process-induced residual strains are evaluated using these sensors. The behaviour of optic sensors during pultrusion is assessed, and the effect of the embeddment of optical fibres and their surface coatings on the mechanical properties of the composite material is investigated. To verify the operation of the optic sensors embedded in the smart pultruded rods, mechanical tests were conducted and the output of the fibre optic sensors was compared to that of an extensometer. These mechanical tests were performed at room temperature as well as under conditions of low and high temperature extremes. The reliability assessment of the fibre optic sensors further entailed the study of their fatigue and creep behaviour as well as their performance when the rods in which they are embedded are placed in a severe environment (e.g., alkaline solutions) that may simulate conditions encountered in concrete structures wherein the composite rods will be used as prestressing tendons or rebars.Key words: smart composite reinforcements, fibre optic sensors, pultrusion, residual strain, fatigue and creep behaviour, reliability assessment.

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Arjyal, Bish, and Costas Galiotis. "Localised Stress Measurements in Composite Laminates Using a Raman Stress Sensor." Advanced Composites Letters 4, no. 2 (March 1995): 096369359500400. http://dx.doi.org/10.1177/096369359500400203.

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A new remote laser Raman stress/ strain sensor for localised measurements in polymer based composites, has been developed and tested. Measurements can be conducted in reinforcing fibres near the surface of laminates. For measurements in the bulk of composites, the exciting laser light has to be transported to the reinforcing fibres via an embedded fibre optic cable. The backscattered light is transmitted through the same fibre optic and is sent to the Raman spectrometer for analysis. The effect of the direction of the fibre optic cable with respect to the axis of the reinforcing fibres is examined. Finally, the relationships between the local fibre stress or strain obtained from the Raman sensor and the far field stress or strain measured conventionally, are established.

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Sharp, R., and M. N. Birchall. "Optimal Extraction of Fibre Optic Spectroscopy." Publications of the Astronomical Society of Australia 27, no. 1 (2010): 91–103. http://dx.doi.org/10.1071/as08001.

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AbstractWe report an optimal extraction methodology, for the reduction of multi-object fibre spectroscopy data, operating in the regime of tightly packed (and hence significantly overlapping) fibre profiles. The routine minimises crosstalk between adjacent fibres and statistically weights the extraction to reduce noise. As an example of the process we use simulations of the numerous modes of operation of the AAOmega fibre spectrograph and observational data from the SPIRAL Integral Field Unit at the Anglo-Australian Telescope.

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Murthy, P. V. S. S. L. N. "Fibre Optic Transmission." IETE Journal of Education 33, no. 1 (January 1992): 57–76. http://dx.doi.org/10.1080/09747338.1992.11436357.

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Jackson, D. A., and J. D. C. Jones. "Fibre Optic Sensors." Optica Acta: International Journal of Optics 33, no. 12 (December 1986): 1469–503. http://dx.doi.org/10.1080/713821914.

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Midwinter, J. E. "Fibre optic communications." Optics & Laser Technology 17, no. 6 (December 1985): 326. http://dx.doi.org/10.1016/0030-3992(85)90110-0.

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Tebby, G. "Fibre optic cables." Optics & Laser Technology 19, no. 6 (December 1987): 322. http://dx.doi.org/10.1016/0030-3992(87)90043-0.

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Jones, R. E. "Fibre optic sensors." Optics & Laser Technology 20, no. 6 (December 1988): 327–28. http://dx.doi.org/10.1016/0030-3992(88)90066-7.

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Hotate, Kazuo. "Fibre-optic gyros." Optics & Laser Technology 25, no. 4 (August 1993): 262. http://dx.doi.org/10.1016/0030-3992(93)90123-w.

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Dissertations / Theses on the topic "Fibre optic"

1

Attridge, John Worthington. "Fibre optic chemical sensing." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/37931.

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Zhang, Zhi Yi. "Fibre optic fluorescence thermometry." Thesis, City University London, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359087.

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Hale, Zoe Miranda. "Fibre optic sensors using adiabatically tapered single mode fibres." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320155.

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Raum, Christopher Richard. "Fibre optic alignment using micromachines." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq30540.pdf.

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Pannell, C. N. "Fibre-optic laser Doppler velocimetry." Thesis, University of Kent, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383370.

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Akhavan, Leilabady P. "Monomode fibre optic interferometric sensors." Thesis, University of Kent, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383964.

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Farwell, Selina Gail. "Fused tapered fibre optic devices." Thesis, University of Southampton, 1997. https://eprints.soton.ac.uk/394564/.

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This thesis is concerned with the realisation of an all-fibre acousto-optic device which can be used as a switch, filter, frequency shifter, polarisation controller or amplitude modulator, depending on the configuration. The devices are based on the acousto-optic interaction in fused tapered couplers and as such are completely compatible with fibre networks. For the first time polarisation insensitive devices have been realised by precisely controlling the degree of fibre fusion in an asymmetric coupler. This thesis details the theoretical considerations required to fabricate and operate all-fibre acousto-optic devices. The acousto-optic theory of circular cross-section devices is developed and extended to non-circular cross-sections. In this way all practical devices with non-circular cross-sections can be accurately modelled, and the optical bandwidth, switching speed and polarisation dependence can be tailored to a specific requirement. Polarisation independent operation is a serious obstacle in the development of practical photonic devices. This issue was resolved in this device by using geometric birefringence in the interaction region, produced by fusing the fibres of the null coupler to a precise degree of fusion. Polarisation independent operation is achieved with this technique without compromising other device parameters such as drive power. In order to fabricate these devices with the required uniformity, the tolerance on the manufacturing process was theoretically and experimentally studied. A new coupler rig was designed to operate within these tolerances. The coupler rig was capable of the manufacture of uniform devices both in the degree of fibre fusion and in the area of the device cross-section. The rig was optimised to produce low excess loss devices with high isolation between the output ports. In addition, it was possible to manufacture the length of the uniform tapered region over three times longer than previously possible. The incorporation of the non-circular operational theory enables non-destructive measurements of both the degree of fibre fusion and the device cross-sectional area, anywhere along the tapered region. Unlike competing technologies, geometric birefringence produces polarisation insensitive devices without compromising device parameters. This technique allows the following characteristics to be simultaneously achieved: 1) lower drive power, < 0.25 mW, 2) improved polarisation insensitivity, < 0.01 dB, 3) improved crosstalk, < -40 dB, 4) better excess loss, < 0.001 dB, 5) switching speeds of < 40 µs for a 25 mm long device, and 6) only one fabrication step.

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Norman, D. C. C. "Interrogation of fibre optic sensors." Thesis, Aston University, 2006. http://publications.aston.ac.uk/8022/.

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The aim of the research work described in this thesis was to investigate the interrogation of fibre optic sensors using "off the shelf optical components and equipment developed mainly for the telecommunications industry. This provides a cost effective way of bringing fibre optic sensor systems to within the price range of their electro-mechanical counterparts. The research work focuses on the use of an arrayed waveguide grating, an acousto-optic tuneable filter and low-coherence interferometry to measure dynamic strain and displacement using fibre Bragg grating and interferometric sensors. Based on the intrinsic properties of arrayed waveguide gratings and acousto-optic tuneable filters used in conjunction with interferometry, fibre Bragg gratings and interferometric sensors a number of novel fibre optic sensor interrogation systems have been realised. Special single mode fibre, namely, high-birefringence fibre has been employed to implement a dual-beam interrogating interferometer. The first interrogation scheme is based on an optical channel monitor, which is an arrayed waveguide grating with integral photo-detectors providing a number of amplified electrical outputs. It is used to interrogate fibre Bragg grating and interferometric sensors. Using the properties of polarisation maintainability in high-birefringent fibre an interrogating interferometer was realised by winding a length of the fibre around a piezoelectric modulator generating a low-frequency carrier signal. The system was used to interrogate both fibre Bragg grating and interferometric sensors. Finally, the use of an acousto-optic tuneable filter is employed to interrogate fibre Bragg gratings. The device is used to generate a very high frequency carrier signal at the output of an optical interferometer.

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Chandani, Sameer M. "Fibre optic sensors based on D-shaped elliptical core fibres." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/31270.

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Optical fibre-based sensors have gained much attention over the past three decades and are gaining acceptance in many industries such as the aerospace, automotive, chemical processing, biological sensing, and medical industries. The work presented here demonstrates the use of D-shaped fibres as intensity-based fibre optic sensors. The fibres are etched to gain access to their evanescent optical fields and are operated in their "leaky", regimes, i.e., the regime in which optical power leaks out of their cores. The optical power transmission through the etched D-fibre, which constitutes the sensor head, depends on the refractive index of the measurand placed on the sensor head. Thus by using materials whose refractive indices depend on the desired measurands, intensity-based sensors can be realised. A "non-destructive" process for determining the etched cladding thickness of the D-fibre is also developed. Once calibrated for a specific fibre or fibre batch, only one thermo-optic oil, three temperature measurements and a mathematical fitting routine are required to determine the etched cladding thickness with an accuracy better than 0.3 μm. Four types of sensor are demonstrated. A refractive index sensor with a high resolution region and a low resolution region, both of which can be shifted by changing the operating wavelength, is demonstrated with a maximum resolution on the order of 10⁻⁶ refractive index units. Naturally, this leads to the development of a temperature sensor with an adjustable dynamic range and resolution that uses thermo-optic oils. Proof of principle is demonstrated for an electric field sensor using chiral smectic A liquid crystals. A continuous liquid level sensor (that can also be implemented as a discrete level sensor) is also demonstrated using only one optical source, one optical detector and a single length of fibre.
Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate

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Hadjiprocopiou, Marios. "Fibre optic sensors for smart structures." Thesis, University of Surrey, 1997. http://epubs.surrey.ac.uk/842922/.

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"Smart Structures" or "Smart Skins" will require structurally integrated sensing systems that can operate in practical situations. Optical sensing techniques are receiving considerable attention for the monitoring of such systems. Single ended polarimetric sensors were utilized with a large dynamic range for strain measurements as surface mounted and embedded strain sensors in composite materials (glass fibre and carbon fibre reinforced polymers). They were also used to monitor the strain and the formation of microcracks in the glue line of carbon fibre reinforced polymer (CFRP) concrete beams. The intrinsic Fabry-Perot was also used as a surface mounted sensor to monitor axial strain of GFRP coupons. Finite Element (FE) modelling was used in order to investigate the stress/strain distributions within the composite material and the embedded optical fibre. The modelling results show excellent agreement with the experimental results and suggest that the soft acrylate coating is debonding, thus reducing the sensor's dynamic range. Actuators and/or Sensors embedded into a host material will disrupt the physical properties of the host. Finite element analysis was used to determine and to minimise the stress concentrations which arise in a "Smart" material system due to the embedded optical fibre sensor. A parametric study was undertaken to determine the theoretical mechanical and thermal properties of the interface coating that minimises the disruption of the polymer composite host material properties due to the optical fibre inclusion. The effects of transverse tensile and thermal loading were studied, and also the residual thermal stress concentrations due to the manufacturing process were taken into consideration. The stress concentrations in the composite host are affected by the dimensions, mechanical and thermal properties of the interface coating. The results show that with careful selection of the interface coating properties die stress concentrations in the host material caused by the optical fibre inclusion can be reduced and be similar to those of the pure host material.

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Books on the topic "Fibre optic"

1

Fibre optic systems. Chichester [West Sussex]: Wiley, 1987.

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Venghaus, Herbert, and Norbert Grote, eds. Fibre Optic Communication. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-42367-8.

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Venghaus, Herbert, and Norbert Grote, eds. Fibre Optic Communication. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-20517-0.

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Fenton, Jackie. Fibre optic speech link. [s.l: The Author], 1995.

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Grote, Norbert, and Herbert Venghaus, eds. Fibre Optic Communication Devices. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56466-6.

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6

Grote, Norbert. Fibre Optic Communication Devices. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001.

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7

Robinson, J. A. Split spectrum fibre optic link. Manchester: UMIST, 1993.

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Norbert, Grote, and SpringerLink (Online service), eds. Fibre Optic Communication: Key Devices. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012.

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9

Varia, S. Fibre optic digital video transmission system. Manchester: UMIST, 1996.

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10

Melia, A. Instrumentation for fibre optic distributed sensors. Manchester: UMIST, 1996.

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Book chapters on the topic "Fibre optic"

1

Warnes, Lionel. "Fibre-optic communications." In Electronic and Electrical Engineering, 519–34. London: Macmillan Education UK, 1998. http://dx.doi.org/10.1007/978-1-349-15052-6_26.

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Warnes, Lionel. "Fibre-optic communications." In Electronic and Electrical Engineering, 519–34. London: Macmillan Education UK, 2003. http://dx.doi.org/10.1007/978-0-230-21633-4_26.

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Stewart, G. "Fibre optic sensors." In Sensor Systems for Environmental Monitoring, 1–40. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-1571-8_1.

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Warnes, L. A. A. "Fibre-optic communications." In Electronic and Electrical Engineering, 491–506. London: Macmillan Education UK, 1994. http://dx.doi.org/10.1007/978-1-349-13012-2_25.

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Anand, M. L. "Fibre Optic Communication." In Principles of Communication Engineering, 519–56. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003222279-25.

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Hogan, Richard, Iain A. Pretty, and Roger P. Ellwood. "Fibre-Optic Transillumination: FOTI." In Detection and Assessment of Dental Caries, 139–50. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16967-1_14.

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Jones, J. D. C. "Monomode fibre optic sensors." In Optical Methods in Engineering Metrology, 415–64. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1564-3_11.

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Hand, D. P. "Fibre Optic Beam Delivery." In Handbook of Laser Technology and Applications, 435–43. 2nd ed. 2nd edition. | Boca Raton : CRC Press, 2021- |: CRC Press, 2021. http://dx.doi.org/10.1201/b21828-29.

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Harmer, A. L., and R. Narayanaswamy. "Spectroscopic and fibre-optic transducers." In Chemical Sensors, 275–94. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-010-9154-1_13.

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Miki, T. "Fibre-Optic Subscriber Loop Networks." In Telecommunications Local Networks, 3–18. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1534-6_1.

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Conference papers on the topic "Fibre optic"

1

Minford, W. J., and R. M. DePaula. "Fibre Optic Gyroscope Developments Using Integrated Optic Components." In Fibre Optics '88, edited by Lionel R. Baker. SPIE, 1988. http://dx.doi.org/10.1117/12.947536.

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Oscroft, Gordon. "Intrinsic Fibre Optic Sensors." In Fibre Optics '87, edited by Lionel R. Baker. SPIE, 1987. http://dx.doi.org/10.1117/12.938019.

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Beale, N. C. L. "Standard Fibre Optic Ring LANs." In Fibre Optics '85, edited by Lionel R. Baker. SPIE, 1985. http://dx.doi.org/10.1117/12.946229.

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Li, Hong-Nan, Dong-Sheng Li, and Su-Yan Wang. "Study and Application of Health Monitoring by Fiber Optic Sensors in Civil Engineering." In ASME 2003 Pressure Vessels and Piping Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/pvp2003-2175.

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In civil engineering, the smart health monitoring method by use of fiber optic sensor is a new approach that evaluates the structural health situation. The current status in applications of fibre optic structural health monitoring in civil engineering structures with a brief introduction of the advantages, basic principles of fibre optic sensors is described in this paper. Leakage detection and potential damage to pipelines are emphasized. Finally, existing problems for packing and implementing fibre optic sensors in structures are discussed.

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Hotra, Zenon, Olena Aksimenteva, Iryna Hlushyk, Vladyslav Cherpak, and Pavlo Stakhira. "Fibre-Optic pH Sensor." In 2006 International Conference - Modern Problems of Radio Engineering, Telecommunications, and Computer Science. IEEE, 2006. http://dx.doi.org/10.1109/tcset.2006.4404682.

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Walker, Ian, and Dennis Carr. "Fibre Optic Leak Detection." In Offshore Technology Conference. Offshore Technology Conference, 2003. http://dx.doi.org/10.4043/15360-ms.

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Laming, Richard I., Martin P. Gold, David N. Payne, and Neil A. Halliwell. "Fibre-Optic Vibration Probe." In 1985 International Technical Symposium/Europe, edited by Herve J. Arditti and Luc B. Jeunhomme. SPIE, 1986. http://dx.doi.org/10.1117/12.951135.

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Andonovic, Ivan, Brian Culshaw, and Mohammed Shabeer. "Fibre Optic Signal Processing." In Optical Fibers and Their Applications V, edited by Ryszard S. Romaniuk and Mieczyslaw Szustakowski. SPIE, 1990. http://dx.doi.org/10.1117/12.952941.

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Greenhalgh, Philip A., Anthony P. Foord, and Phillip A. Davies. "Fibre optic frequency shifters." In London - DL tentative, edited by P. McGeehin. SPIE, 1990. http://dx.doi.org/10.1117/12.21990.

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Greenhalgh, P. A., A. P. Foord, P. A. Davies, and C. N. Pannell. "Fibre Optic Frequency Shifters." In OE/FIBERS '89, edited by Paul M. Kopera. SPIE, 1990. http://dx.doi.org/10.1117/12.963293.

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Reports on the topic "Fibre optic"

1

Lamontagne, Y., and J. C. Macnae. Fibre optic data links for borehole EM application. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1986. http://dx.doi.org/10.4095/123608.

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Josenhans, H., and D. Frobel. The Cabot Strait fibre optic cable route survey. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1995. http://dx.doi.org/10.4095/203624.

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Waema, Timothy, and Charles Katua. The Promises of Fibre-Optic Broadband in Tourism and Tea Sectors: A Pipeline for Economic Development in East Africa. Unknown, 2014. http://dx.doi.org/10.35648/20.500.12413/11781/ii163.

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Bellefleur, G., E. Schetselaar, D. Wade, D. White, R. Enkin, and D. R. Schmitt. Analysis of wireline logs and vertical seismic profiling data acquired with fibre-optic cable at the copper-gold New Afton porphyry deposit, British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2019. http://dx.doi.org/10.4095/313657.

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Narvaez, Liliana, Joerg Szarzynski, and Zita Sebesvari. Technical Report: Tonga volcano eruption. United Nations University - Institute for Environment and Human Security (UNU-EHS), August 2022. http://dx.doi.org/10.53324/ysxa5862.

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On 15 January 2022, the Hunga-Tonga-Hunga-Ha'apai volcano eruption was felt across the Pacific Ocean and beyond, releasing energy equivalent to hundreds of Hiroshima nuclear explosions and creating supersonic air pressure waves that were observed from space. In the archipelago Kingdom of Tonga, the ashfall, tsunami and shock waves caused widespread devastation on several islands. The only fibre-optic cable that connects the islands with the rest of the world was severely damaged, leaving the entire country offline for more than three weeks. The case the Hunga Tonga-Hunga Ha’apai volcano eruption showed that the inability to “be online” becomes a vulnerability in the context of extreme events. This technical background report for the 2021/2022 edition of the Interconnected Disaster Risks report analyses the root causes, drivers, impacts and potential solutions for the Tonga volcano eruption through a forensic analysis of academic literature, media articles and expert interviews.

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Bellefleur, G., E. Schetselaar, and D. White. Seismic imaging of porphyry deposits with distributed acoustic sensing of fibre-optic cables: a summary of results at the New Afton Cu-Au mine, British Columbia. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/327942.

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Rudy, C., S. Bayliss, D. Bracken, J. Bush, and P. Davis. Fiber optic calorimetry. Office of Scientific and Technical Information (OSTI), January 1998. http://dx.doi.org/10.2172/563803.

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Rudy, C., S. Bayliss, D. Bracken, J. Bush, and P. Davis. Fiber Optic Calorimetry. Office of Scientific and Technical Information (OSTI), December 1997. http://dx.doi.org/10.2172/763148.

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Rabold, D. Fiber optic temperature sensor. Office of Scientific and Technical Information (OSTI), December 1995. http://dx.doi.org/10.2172/145843.

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Prucnal, P. R., and E. R. Fossum. Integrated Fiber-Optic Coupler. Fort Belvoir, VA: Defense Technical Information Center, April 1987. http://dx.doi.org/10.21236/ada184494.

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