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Journal articles on the topic 'Fibre optic'

Author: Grafiati
Published: 4 June 2021
Last updated: 30 January 2023

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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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

Midwinter, J. E. "Fibre Optic Systems." Journal of Modern Optics 35, no. 5 (May 1988): 755–56. http://dx.doi.org/10.1080/09500348814550831.

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12

Horiuchi, Noriaki. "Fibre-optic pickup." Nature Photonics 6, no. 2 (February 2012): 80. http://dx.doi.org/10.1038/nphoton.2012.3.

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13

Walt, David R. "Fibre optic microarrays." Chem. Soc. Rev. 39, no. 1 (2010): 38–50. http://dx.doi.org/10.1039/b809339n.

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14

Jiroutová, Dita, and Miroslav Vokáč. "ANALYSIS OF THE ACCURACY OF FIBRE-OPTIC STRAIN GAUGES." Acta Polytechnica 53, no. 6 (December 31, 2013): 872–77. http://dx.doi.org/10.14311/ap.2013.53.0872.

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In recent years, the field of structure monitoring has been making increasing use of systems based on fiber-optic technologies. Fiber-optic technology offers many advantages, including higher quality measurements, greater reliability, easier installation and maintenance, insensitivity to the environment (mainly to the electromagnetic field), corrosion resistance, safety in explosive and flammable environments, the possibility of long-term monitoring and lower cost per lifetime. We have used SOFO fibre-optic strain gauges to perform measurements to check the overall relative deformation of a real reinforced concrete structure. Long-term monitoring of the structure revealed that the measurement readings obtained from these fibre-optic strain gauges differed from each other. Greater attention was therefore paid to the calibration of the fibre-optic strain gauges, and to determining their measurement accuracy. The experimental results show that it is necessary to calibrate SOFO strain gauges before they are used, and to determine their calibration constant.
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15

K, Saravanan, and V. Mathivananr. "Fibre Optic Infrastructure for Network Deployment Using Application System." Indonesian Journal of Electrical Engineering and Computer Science 9, no. 2 (February 1, 2018): 311. http://dx.doi.org/10.11591/ijeecs.v9.i2.pp311-315.

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Fiber optic has an imperative part in the improvement of media communications framework in Indonesia. Better system execution and nature of the speed that offered by fiber optic can bolster the information prerequisite which keeps on expanding each year. In Indonesia, Fiber Optics is utilized as the essential system foundation Backbone and Access and still keep on developing the fiber optic system in Indonesia. Therefore, the process of reporting, controlling and monitoring are imperative for network deployment of fiber optic network by using an application system to be more efficient and accelerate the decision making process. In this study FOMApps is made, an android based application that facilitates the requirements of monitoring, controlling and reporting the fiber optic project between the Government and fiber optic deployment provider. Specifically, FOMApps incorporate distinctive announcing positions for each sort of employment. The test aftereffects of detailing framework Optical Fiber Cable (Outside Plant) has a speed in conveying the report added up to 257.516 seconds. So from the outcomes that are acquired, the application is plausible for use in detailing the arrangement of Outside Plant Fiber Optic. With the presence of this application, we expect the way toward controlling and checking between the Government and fiber optic organizations suppliers are accomplished.
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16

Bhatia, Ajay, and Vikrant Sharma. "Elements of a Fiber Optic Communication System." Journal of Optical Communication Electronics 8, no. 2 (August 31, 2022): 19–25. http://dx.doi.org/10.46610/jooce.2022.v08i02.004.

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Fiber optic connection is the best option for data transmission at gigabit and above rates. Voice, video, telemetry, and data are all transmitted using this method of communication over great distances and over computer networks or local area networks. By converting electronic signals into light, a fibre optic communication system uses light-wave technology to transfer data via fiber. Large bandwidth, smaller diameter, lightweight, long-distance signal transmission, low attenuation, transmission security, and other outstanding characteristics of this type of communication system make it a key component of any telecommunications infrastructure. The characteristic traits, fundamental components, and other aspects of fibre optic communication systems are highlighted in the information that follows.
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17

Shie, N. C., T. L. Chen, and Kai Yuan Cheng. "Use of Fiber Interferometer for AFM Cantilever Probe Displacement Control." Key Engineering Materials 295-296 (October 2005): 77–82. http://dx.doi.org/10.4028/www.scientific.net/kem.295-296.77.

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This investigation presents a fibre-optic Fabry-Perot interferometer as a displacement sensor in an atomic force microsope (AFM). A simple model of light wave transmission between two fibres with the same core diameter is proposed to determine the theoretical equation of light intensity of interference fringes from the fibre-optic Fabry-Perot interferometer. By replacing an AFM cantilever with a movable reflective mirror, the variations of relative light intensity of the interference fringes with the spacing between the fibre and the mirror were recorded. The theoretical equation for the light intensity of interference fringes was close to those obtained experimentally. Finally, a fibre-optic Fabry-Perot interferometer was operated in an AFM to image a two-dimensional phase array with a pitch of 4 µm and a depth of 150 nm.
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18

Epikhin, V. M., and P. V. Karnaushkin. "Acousto-optic modulators for fibre-optic lines." Quantum Electronics 50, no. 10 (September 30, 2020): 962–66. http://dx.doi.org/10.1070/qel17378.

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19

Šaršounová, Zuzana, Vít Plaček, Václav Prajzler, Kateřina Masopustová, and Petr Havránek. "Influence of Optic Cable Construction Parts on Recovery Process after Gamma Irradiation." Energies 15, no. 2 (January 14, 2022): 599. http://dx.doi.org/10.3390/en15020599.

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Fibre optic cables are widely used as communication cables in Instrumentation and Control (I&C) systems. In the case of nuclear power plants (NPPs), using optic cables in mild environments outside of containment areas are very common. However, at present, there is a need for fibre optic cables to be used in containment areas, i.e., with radiation. An optical fibre consists of a highly transparent core that possesses a higher refractive index than the surrounding transparent cladding, which possesses a lower refractive index. Most optical fibres are manufactured from glass (silica with required dopants) which is created at high temperatures from the reaction between gasses. The glass used in optical fibres is sensitive; it becomes dark during exposure to radiation, which compromises the optic functions. That is why there has been a slow infiltration of optic cable in NPP containment areas. Radiation resistant optic fibres have been developed. Although these fibres are called “radiation resistant,” they go through a darkening process (absorbance increase) as well, but not as quickly. Immediately after the irradiation has stopped, a recovery process starts in the glass structure. During this period, optical losses of the glass improve, but not to the original level as before the irradiation. During the testing of optic cables for the installation in nuclear power plant containment areas, we observed an unusual recovery process. In the beginning, a healing effect was observed. However, after a few days of recovery, the healing process stopped, and the trend changed again as a worsening of the optical properties was observed. This paper describes experiments which explain the reasons for such an unexpected behaviour.
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20

Williams, Brian. "Early 'fibre-optic' light." British Dental Journal 230, no. 12 (June 2021): 797. http://dx.doi.org/10.1038/s41415-021-3211-9.

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21

Jhunjhunwala, Ashok, and Sanjay Gupta. "Fibre Optic Local Loop." Journal of Optics 22, no. 2 (June 1993): 43–50. http://dx.doi.org/10.1007/bf03549247.

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22

Laming, R. I., M. P. Gold, D. N. Payne, and N. A. Halliwell. "Fibre-optic vibration probe." Electronics Letters 22, no. 3 (1986): 167. http://dx.doi.org/10.1049/el:19860117.

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23

Yanagawa, H., T. Ochiai, H. Hayakawa, and H. Miyazawa. "Miniature fibre optic polariser." Electronics Letters 24, no. 10 (May 12, 1988): 596–97. http://dx.doi.org/10.1049/el:19880404.

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24

Wiesner, Werner, and Chris Lewis. "Designing fibre-optic links." Electronics and Power 33, no. 11-12 (1987): 699. http://dx.doi.org/10.1049/ep.1987.0425.

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25

Oscroft, Gordon. "INTRINSIC FIBRE OPTIC SENSORS." Sensor Review 12, no. 2 (February 1992): 10–14. http://dx.doi.org/10.1108/eb007872.

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26

(ed), N. Grote and H. Venghaus. "Fibre Optic Communication Devices." Measurement Science and Technology 12, no. 9 (August 16, 2001): 1609. http://dx.doi.org/10.1088/0957-0233/12/9/707.

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27

Clark, Paul, Jason Boriniski, Mike Gunther, Steve Poland, Don Wigent, and Steve Watkins. "Modern fibre optic sensors." Smart Materials Bulletin 2001, no. 6 (June 2001): 8–11. http://dx.doi.org/10.1016/s1471-3918(01)80170-2.

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28

Brownjohn, N. E., N. B. Aldridge, and A. R. Voizey. "Avionic fibre-optic harnessing." Microprocessors and Microsystems 23, no. 7 (December 1999): 449–57. http://dx.doi.org/10.1016/s0141-9331(99)00055-1.

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29

Wylie, Sandi, and Ian Calder. "Flexible fibre-optic intubation." Anaesthesia & Intensive Care Medicine 9, no. 8 (August 2008): 358–61. http://dx.doi.org/10.1016/j.mpaic.2008.06.012.

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30

Wylie, Sandi, and Ian Calder. "Flexible fibre-optic intubation." Anaesthesia & Intensive Care Medicine 15, no. 8 (August 2014): 358–61. http://dx.doi.org/10.1016/j.mpaic.2014.04.012.

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31

Sokolova, Vera, and Dmitrijs Sokolovs. "Flexible fibre-optic intubation." Anaesthesia & Intensive Care Medicine 21, no. 9 (September 2020): 441–45. http://dx.doi.org/10.1016/j.mpaic.2020.06.001.

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32

Brenci, M., D. Guzzi, A. Mencaglia, and A. G. Mignani. "Fibre-optic smoke sensor." Sensors and Actuators B: Chemical 7, no. 1-3 (March 1992): 780–83. http://dx.doi.org/10.1016/0925-4005(92)80403-k.

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33

Cambridge Consultants Limited. "Fibre optic measuring device." NDT & E International 25, no. 1 (January 1992): 51–52. http://dx.doi.org/10.1016/0963-8695(92)90147-9.

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34

Binu, S., V. P. Mahadevan Pillai, V. Pradeepkumar, B. B. Padhy, C. S. Joseph, and N. Chandrasekaran. "Fibre optic glucose sensor." Materials Science and Engineering: C 29, no. 1 (January 2009): 183–86. http://dx.doi.org/10.1016/j.msec.2008.06.007.

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35

Ginlünas, L., R. Juškaitis, and S. V. Shatalin. "Scanning fibre-optic microscope." Electronics Letters 27, no. 9 (1991): 724. http://dx.doi.org/10.1049/el:19910450.

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36

Egan, Bruce. "Residential fibre optic networks." Telecommunications Policy 16, no. 8 (November 1992): 694–95. http://dx.doi.org/10.1016/0308-5961(92)90064-v.

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37

Vaughan, David J. A., and Michael D. Brunner. "Awake fibre-optic intubation." Canadian Journal of Anaesthesia 45, no. 2 (February 1998): 187–88. http://dx.doi.org/10.1007/bf03013264.

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38

Silvennoinen, R., K. E. Peiponen, K. Ikonen, T. Asakura, J. Luostarinen, and Cong Gu. "A fibre optic reflectometer." Optics and Lasers in Engineering 18, no. 1 (January 1993): 15–24. http://dx.doi.org/10.1016/0143-8166(93)90003-4.

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39

Kampai, Genta, and Harmadi Harmadi. "Rancang Bangun Alat Pendeteksi Kelebihan Beban Kendaraan Menggunakan Sensor Serat Optik dan Transceiver nRF24L01+." Jurnal Fisika Unand 9, no. 1 (February 11, 2020): 1–8. http://dx.doi.org/10.25077/jfu.9.1.1-8.2020.

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Telah dirancang alat pendeteksi kelebihan beban kendaraan menggunakan sensor serat optik dengan metode intrinsik. Rancang bangun alat pendeteksi kelebihan beban kendaraan ini terdiri dari sumber cahaya berupa dioda laser, serat optik FD-620-10, fotodetektor OPT 101, mikrokontroler Arduino Uno sebagai pengelolah data, buzzer, dan LCD sebagai penampil hasil pengukuran. Sensor serat optik digunakan untuk mengukur beban pada kendaraan dengan memanfaatkan perubahan tegangan keluaran dari OPT101 dan di transmisikan menggunakan Transceiver nRF24L01+. Karakterisasi sensor serat optik dilakukan dengan memvariasikan bending dalam bentuk banyaknya jumlah gerigi terhadap besarnya tegangan keluaran pada sensor serat optik. Hasil yang optimum diperoleh pada jumlah 5 gerigi dengan tegangan keluran sebesar 1,121 V. Kelebihan beban kendaraan maksimum yang dideteksi oleh sensor sebesar 6400 kg dengan tegangan keluaran sebesar 0,215 V. Jarak maksimum pengiriman data oleh Transceiver nRF24L01+ adalah 450 m tanpa penghalang dan 230 m dengan penghalang. Hasil pengukuran kelebihan beban kendaraan yang diperoleh dengan alat yang dirancang dibandingkan dengan jembatan timbang diperoleh kesalahan rata-rata sebesar 9,2 %. It has been designed an overloaded vehicle detection tool using optical fibre sensor with intrinsic method. The design of the vehicle's overload detection tool consists of laser diode as a light source, an optical fiber FD-620-10, a photodetector OPT 101, an Arduino Uno microcontroller as a data processor, a buzzer, and an LCD as a measuring result viewer. The fiber optic sensor is used to measure the load on the vehicle by utilizing the output voltage changes from OPT101 and cast using the Transceiver nRF24L01. The characterization of the fibre optic sensor is performed by varying bending in the form of a large amount of cleats to the magnitude of the output voltage in the fibre optic sensor. Optimum results are obtained at the number of 5 wells with a tension voltage is 1.121 V. The overload of maximum vehicle detected by the sensor is amounted to 6400 kg and a sensor output voltage is 0.215 V. The maximum distance from the data transmission Transceiver nRF24L01 + is 450 m without barrier and 230 m with barrier. The result of overload vehicle measurements obtained with designed tool is compared detection to weighbridge were obtained an average fault of 9.2%.
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40

Di Marzio, Frank, Jakub Szajman, and Alex Mazzolini. "A Fibre Optic Sensor for High-velocity Measurements of Projectiles Driven by Hot Gases." Australian Journal of Physics 48, no. 1 (1995): 79. http://dx.doi.org/10.1071/ph950079.

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A fibre optic sensor system for the measurement of the velocity of projectiles propelled by hot gases has been developed. It was found that fibre optic techniques have significant advantages over conventional breakwire methods in this electromagnetically noisy environment. A simple passive fibre system produced both accurate and reliable measurements of projectile velocities which, in this study, were in the range 1-3 km s-l. In addition, by using a number of fibres at different positions along the projectile path, the average velocity of the projectile can be determined at several points, and a velocity profile for the projectile motion obtained.
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41

Menzel, M., K. Michielsen, H. De Raedt, J. Reckfort, K. Amunts, and M. Axer. "A Jones matrix formalism for simulating three-dimensional polarized light imaging of brain tissue." Journal of The Royal Society Interface 12, no. 111 (October 2015): 20150734. http://dx.doi.org/10.1098/rsif.2015.0734.

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The neuroimaging technique three-dimensional polarized light imaging (3D-PLI) provides a high-resolution reconstruction of nerve fibres in human post-mortem brains. The orientations of the fibres are derived from birefringence measurements of histological brain sections assuming that the nerve fibres—consisting of an axon and a surrounding myelin sheath—are uniaxial birefringent and that the measured optic axis is oriented in the direction of the nerve fibres (macroscopic model). Although experimental studies support this assumption, the molecular structure of the myelin sheath suggests that the birefringence of a nerve fibre can be described more precisely by multiple optic axes oriented radially around the fibre axis (microscopic model). In this paper, we compare the use of the macroscopic and the microscopic model for simulating 3D-PLI by means of the Jones matrix formalism. The simulations show that the macroscopic model ensures a reliable estimation of the fibre orientations as long as the polarimeter does not resolve structures smaller than the diameter of single fibres. In the case of fibre bundles, polarimeters with even higher resolutions can be used without losing reliability. When taking the myelin density into account, the derived fibre orientations are considerably improved.
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42

Szajman, Jakub, Frank Di Marzio, and Michael Podlesak. "Fibre Optic Shock Velocity Sensor for Solids." Australian Journal of Physics 52, no. 1 (1999): 27. http://dx.doi.org/10.1071/p98068.

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This paper reports a fibre optic sensing technique for the measurement of shock velocity in solid materials. The shock-induced changes in the light transmission properties of an optical fibre are employed as the principal transduction mechanism. A polycarbonate flyer plate generated shock waves by impacting a perspex target. The shock velocity was determined from the difference in arrival times of the shock front at the spatially separated optical fibres embedded in the target. The main advantage of this sensor system lies in its simplicity and immunity to optical and radio frequency (RF) noise. Consideration is also given to the effect of release waves on the uniform shock pressure region generated by the ˚yer impact which can degrade the accuracy of the velocity measurement.
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43

Cuadrado-Laborde, C., M. Delgado-Pinar, S. Torres-Peiró, A. Díez, and M. V. Andrés. "Q-switched all-fibre laser using a fibre-optic resonant acousto-optic modulator." Optics Communications 274, no. 2 (June 2007): 407–11. http://dx.doi.org/10.1016/j.optcom.2007.02.032.

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44

Akhwaba, James. "Leadership skills, stakeholder management and execution of fibre-optic infrastructure: intervening influence of government policy." Organization, Technology and Management in Construction: an International Journal 13, no. 1 (January 1, 2021): 2426–37. http://dx.doi.org/10.2478/otmcj-2020-0014.

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Abstract Communication technology has drastically evolved in the last 10 years across the globe. With increased demand for data and voice traffic, fibre-optic network is preferred to transmit high-speed broadband. Nonetheless, fibre-optic infrastructure involves huge construction challenges and continues to fail because of ineffective leadership, stakeholder management and government policies. The main purpose of this study was to investigate how government policy intervenes on the joint influence of leadership skills and stakeholder management on execution of fibre-optic infrastructure in Nairobi County, Kenya. This study adopted the pragmatism paradigm approach, with a cross-sectional survey design. Census was used to select 187 respondents from a target population of 187 functional staff in fibre-optic infrastructure departments. A questionnaire was used to collect quantitative data while an interview guide was used to collect qualitative data. Statistical analysis techniques were used to analyse the data. It was demonstrated that government policy has a significant intervening influence on the joint influence of leadership skills and stakeholder management on execution of fibre-optic infrastructure. Therefore, governments should come up with policies to guide and regulate execution of fibre-optic infrastructure, review building code to allow for fibre-optic services in new buildings, develop right of way conduits and establish a centrally coordinated authority to facilitate time-bound issuance of permits and related services. It was suggested that similar studies should be carried out in other countries and target vendors and contractors engaged in supply of equipment and construction of fibre-optic infrastructure.
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45

Ekgardt, V. F., D. A. Dorofeev, T. B. Shaimov, and R. V. Deev. "About the optic disc size." Kazan medical journal 94, no. 6 (December 15, 2013): 850–53. http://dx.doi.org/10.17816/kmj1804.

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Aim. To compare the dependence of retinal nerve fibre layer thickness on the optic disc size in confocal scanning laser ophthalmoscopy and optical coherence tomography. Methods. 201 outpatient’s cards with verified diagnosis of glaucoma or with suspicion of glaucoma were retrospectively analyzed. The mean age of the patients was 64 (56; 72) years [Me, (Q1; Q3)]. A group of patients who underwent confocal scanning laser ophthalmoscopy (181 eyes), and a group who underwent optical coherence tomography (183 eyes), were separated. Besides, all the groups were twice divided into 3 subgroups each, by means of cluster analysis and on the basis of size classification: large, medium and small. Results. According to the data of confocal scanning laser ophthalmoscopy, the bigger is the optic disc, the thinner is retinal nerve fibre layer (Rs=-0.22; р=0.001). In optical coherence tomography, different correlation was observed, the bigger is the optic disc, the thicker is the retinal nerve fibre layer (Rs=0.15; р=0.03). Conclusion. The size of the optic disc was related to the retinal nerve fibre layer thickness in both examination modes: there was an inverse relation found in confocal scanning laser ophthalmoscopy - the bigger the optic disc, the thinner is the retinal nerve fibre layer), and there was a direct dependence found in optical coherence tomography (the bigger is the optic disc, the thicker is retinal nerve fibre layer), thus it is important to consider the size of the optic disc while estimating the retinal nerve fibre layer thickness.
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46

Mishra, Rashmi Rekha, and Karmila Soren. "Optical BPSK Modulation and Demodulation using Opti System Simulator." International Journal of Inventive Engineering and Sciences 9, no. 1 (December 30, 2021): 1–4. http://dx.doi.org/10.35940/ijies.c1045.129121.

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Fibre optics deals with study of propagation of light through transparent dielectric waveguides. The fibre optics is used for transmission of data from point to point location. Fibre optic systems currently used are most extensively as the transmission line between terrestrial hardwired systems. The carrier frequencies used in conventional systems had the limitations in handling the volume and rate of the data transmission. Greater the carrier frequency larger is the available bandwidth and information carrying capacity. This paper explains about Optical BPSK, where input data is converted to BPSK data which is optically modulated by optical modulator and transmitted through an optical fibre cable. The transmitted data and received data are compared in the end.
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47

Kameswaran, Mohan. "Fibre-optic endoscopy in atrophic rhinitis." Journal of Laryngology & Otology 105, no. 12 (December 1991): 1014–17. http://dx.doi.org/10.1017/s0022215100118092.

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AbstractPrimary atrophic rhinitis seems to have a high prevalence in the arid regions bordering the great deserts of Saudi-Arabia. Fibre-optic endoscopy was performed on 42 patients treated surgically. Fibre-optic endoscopy demonstrated the presence of crusts in the nasal cavities and their subsequent reduction following surgery. It also demonstrated ulceration of the cartilaginous nasal septum in some cases and this may explain the pathogenesis of septal perforation noted in a high number of our patients. Fibre-optic nasendoscopy was also helpful in demonstrating the reappearance of free mucus in the nasal cavity and helped to determine the optimal time for reversing Young's procedure. Fibre-optic nasendoscopy is a reliable tool for verifying the results of surgery and comparing the efficacy of various treatment modalities.
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48

Okamura, H. "Fibre-optic magnetic sensor utilising metal-coated fibre." Electronics Letters 23, no. 16 (1987): 834. http://dx.doi.org/10.1049/el:19870590.

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49

Malecki, Edward J. "Fibre tracks: explaining investment in fibre optic backbones." Entrepreneurship & Regional Development 16, no. 1 (January 2004): 21–39. http://dx.doi.org/10.1080/0898562042000205018.

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50

Johannessen, Kjetil, Jon Steinar Andreassen, and Sigurd Moe. "Integrated Fibre Optic Subsea System." Measurement and Control 42, no. 4 (May 2009): 107–12. http://dx.doi.org/10.1177/002029400904200403.

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StatoilHydro, Weatherford, FMC Technologies and Nexans Norway are cooperating in a project called Integrated Fibre Optic Subsea System (IFOSS), where multiple aspects of utilizing optical fibre subsea for enhancing bandwidth and reach are addressed, when compared to conventional control systems. The project scope includes utilizing techniques and components from the telecom industry. A holistic approach is taken to include digital communication and transport of analogue signals from fibre based sensors.
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