Radiation Hardened Silica Based Optical Fibers

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Radiation Hardened Silica-Based Optical Fibers

Author : W. J. Miniscalco
Publisher :
ISBN 13 :
Total Pages : 77 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Radiation Hardened Silica-Based Optical Fibers by : W. J. Miniscalco

Download or read book Radiation Hardened Silica-Based Optical Fibers written by W. J. Miniscalco and published by . This book was released on 1988 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since it is generally recognized that radiation-induced loss is due to pre-existing defects in optical fiber, the technical approaches were designed to reduce the number of these defects in as-drawn fiber and to passivate the ones that remain. While our investigations confirmed the Ge doping leads to greater sensitivity, both the experimental and theoretical results remain ambiguous as to whether fluorine is beneficial or deleterious. The diffusion of impurities from the preform substrate tube into the core has been identified as an important source of induced loss. Hydrogen treatment has been found to be an effective means of passivating defects in as-drawn fiber, and improved the hardness of most fibers tested. Optical fibers, Radiation effects, Glass structure. (jes).

Radiation Hardened Silica-Based Optical Fibers

Author : W. J. Miniscalco
Publisher :
ISBN 13 :
Total Pages : 51 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Radiation Hardened Silica-Based Optical Fibers by : W. J. Miniscalco

Download or read book Radiation Hardened Silica-Based Optical Fibers written by W. J. Miniscalco and published by . This book was released on 1986 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the defect passivation approach, we have completed the evaluation of the effects of hydrogen treatment. Considerable reduction in radiation-induced absorption at long wavelengths (lamba>1 micron) has been observed for hydrogen-treated fibers. Posttreatment of irradiated fibers by hydrogen also increases the hardness of the fibers under subsequent irradiation. In addition, we found photolumunescence to be an effective characterization tool which provides additional evidence for the passivating effect of hydrogen treatment. Keywords include: Optical fibers, Radiation effects, and Glass structure.

Radiation Hardening of Strengthened Optical Fibers and Development of New Fluoride Glasses

Author : R. K. Mohr
Publisher :
ISBN 13 :
Total Pages : 71 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Radiation Hardening of Strengthened Optical Fibers and Development of New Fluoride Glasses by : R. K. Mohr

Download or read book Radiation Hardening of Strengthened Optical Fibers and Development of New Fluoride Glasses written by R. K. Mohr and published by . This book was released on 1982 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two independent studies were conducted under this contract: (1) Radiation hardening of compressively strengthened optical fibers; (2) Development of new fluoride glasses. In the first study two preform fabrication processes based on phase separable, leachable alkali borosilicate glasses were evaluated for producing radiation hardened fibers. The first process, known as partial leaching, was found to yield low numerical aperture fibers with moderately high attenuation. Ultra-clean glass melting facilities and extensive composition studies would be required to correct these faults. This was beyond the resources of the contract. The second process, known as molecular stuffing, was used to produce alkali-modified high silica glasses doped with cerium oxide as a radiation hardening agent. Radiation damage kinetic tests were run on these glasses by irradiating the samples with 4-40 ns pulses of 15 MeV electrons and observing the absorption spectra for the time range 0.0000001 sec to 0.1 sec following the electron pulses. The results of these tests show that cerium is not effective, within the time range studies, in suppressing the radiation induced absorption for the high silica glasses tested. In the second study, under this contract, glasses in the HfF4-BaF2-LaF3 family were studied. The effects on glass forming of additions including PbF2, CsF, GdF3 and AlF3 glass was studied.

Radiation Hardened Fiber Optics for Fusion Reactor Diagnostic Systems. Final Technical Report

Author :
Publisher :
ISBN 13 :
Total Pages : 3 pages
Book Rating : 4.:/5 (894 download)

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Book Synopsis Radiation Hardened Fiber Optics for Fusion Reactor Diagnostic Systems. Final Technical Report by :

Download or read book Radiation Hardened Fiber Optics for Fusion Reactor Diagnostic Systems. Final Technical Report written by and published by . This book was released on 1998 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: This final report comprises a brief synopsis of the following original papers published in refereed journals. For further details, these papers themselves should be consulted. (1) ''Fast-neutron radiation effects in a silica-core optical fiber studied by a CCD-camera spectrometer, '' D.L. Griscom, M.E. Gingerich, E.J. Friebele, M. Putnam, and W. Unruh, Appl. Optics 33, 1022-1028 (1994). (2) ''Radiation hardening of pure-silica-core optical fibers by ultra-high-dose [gamma]-ray pre-irradiation, '' D.L. Griscom, J. Appl. Phys. 77, 5008-5013 (1995). (3) ''[gamma]-radiation resistance of aluminum-coated all-silica optical fibers fabricated using different types of silica in the core, '' D.L. Griscom, K.M. Goland, A.L. Tomashuk, D.V.; Pavlov, and Yu. A. Tarabrin, Appl. Phys. Lett. 69, 322-324 (1996). (4) ''[gamma] and fission-reactor radiation effects on the visible-range transparency of aluminum-jacketed, all-silica optical fibers, '' D.L. Griscom, J. Appl. Phys. 80, 2142-2155 (1996). (5) ''Visible/infra-red absorption study in fiber geometry of metastable defect states in high-purity fused silicas, '' D.L. Griscom, Proc. 13th Int'l Conf. on Defects in Insulating Materials, Wake Forest University, Winston-Salem, NC, July 1996. (6) ''Influence of the cladding thickness on the evolution of the NBOHC band in optical fibers exposed to gamma radiations, '' O. Deparis, D.L. Griscom, P. Megret, M. Decreton, and M. Blondel, J. Non-Cryst. Solids 216, 124-128 (1997).

Radiation Effects on Fiber Optics

Author : James A. Wall (Jr.)
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Radiation Effects on Fiber Optics by : James A. Wall (Jr.)

Download or read book Radiation Effects on Fiber Optics written by James A. Wall (Jr.) and published by . This book was released on 1975 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Samples representative of most of the optical fibers presently available in lengths of 10 m or more were tested for their responses to energetic radiation. Glass fibers doped with three different levels of cesium were also prepared and tested. Permanent and transient x-radiation effects tests were performed. Neutron effects tests were performed. All of the fibers tested showed decreases in transmission when exposed to radiation. All of the fibers emitted fluorescent light pulses when exposed to intense x-ray pulses.

Radiation Effects on Fiber Optics and Opto Electronics

Author : IGIC, Inc. Staff
Publisher : Information Gatekeepers Inc
ISBN 13 : 9781568510750
Total Pages : 408 pages
Book Rating : 4.5/5 (17 download)

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Book Synopsis Radiation Effects on Fiber Optics and Opto Electronics by : IGIC, Inc. Staff

Download or read book Radiation Effects on Fiber Optics and Opto Electronics written by IGIC, Inc. Staff and published by Information Gatekeepers Inc. This book was released on 1994 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Defects in SiO2 and Related Dielectrics: Science and Technology

Author : Gianfranco Pacchioni
Publisher : Springer Science & Business Media
ISBN 13 : 9780792366850
Total Pages : 636 pages
Book Rating : 4.3/5 (668 download)

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Book Synopsis Defects in SiO2 and Related Dielectrics: Science and Technology by : Gianfranco Pacchioni

Download or read book Defects in SiO2 and Related Dielectrics: Science and Technology written by Gianfranco Pacchioni and published by Springer Science & Business Media. This book was released on 2000-12-31 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Study Institute, Erice, Italy, April 8-20, 2000

Radiation Effects of Optical Silica Fiber and Radiation Hard Optical Transmission

Author : Tetsuya Suematsu
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (228 download)

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Book Synopsis Radiation Effects of Optical Silica Fiber and Radiation Hard Optical Transmission by : Tetsuya Suematsu

Download or read book Radiation Effects of Optical Silica Fiber and Radiation Hard Optical Transmission written by Tetsuya Suematsu and published by . This book was released on 1982 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiation test to silica fibers were conducted by typical 3 sources. They are silica fiber of graded-index Ge-P doped fiber (A fiber) known as usual communication fiber, step-index borosilicate cladded pure silica core fiber known as better radiation hard fiber (B fiber) and graded-index borosilicate fiber (C fiber). Now, graded-index borosilicate fiber is chosen for influence of boron dopant to radiation characteristics. These fibers were exposed to X-ray radiation, 1 gamma-ray radiation and neutron flux radiation. (Author).

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 892 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Standard Guide for Procedure for Measuring Ionizing Radiation-Induced Attenuation in Silica-Based Optical Fibers and Cables for Use in Remote Fiber-Optic Spectroscopy and Broadband Systems

Download Standard Guide for Procedure for Measuring Ionizing Radiation-Induced Attenuation in Silica-Based Optical Fibers and Cables for Use in Remote Fiber-Optic Spectroscopy and Broadband Systems PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)

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Book Synopsis Standard Guide for Procedure for Measuring Ionizing Radiation-Induced Attenuation in Silica-Based Optical Fibers and Cables for Use in Remote Fiber-Optic Spectroscopy and Broadband Systems by :

Download or read book Standard Guide for Procedure for Measuring Ionizing Radiation-Induced Attenuation in Silica-Based Optical Fibers and Cables for Use in Remote Fiber-Optic Spectroscopy and Broadband Systems written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Military Applications of Fiber Optics

Author : IGIC, Inc. Staff
Publisher : Information Gatekeepers Inc
ISBN 13 : 1568510632
Total Pages : 542 pages
Book Rating : 4.5/5 (685 download)

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Book Synopsis Military Applications of Fiber Optics by : IGIC, Inc. Staff

Download or read book Military Applications of Fiber Optics written by IGIC, Inc. Staff and published by Information Gatekeepers Inc. This book was released on 1994 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fiber Optics Weekly Update

Author :
Publisher : Information Gatekeepers Inc
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4./5 ( download)

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Book Synopsis Fiber Optics Weekly Update by :

Download or read book Fiber Optics Weekly Update written by and published by Information Gatekeepers Inc. This book was released on with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Pure-Silica Core Optical Fiber and Fiber Cable for Radiation Fields

Author : Hiroyuki Tanaka
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (228 download)

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Book Synopsis Pure-Silica Core Optical Fiber and Fiber Cable for Radiation Fields by : Hiroyuki Tanaka

Download or read book Pure-Silica Core Optical Fiber and Fiber Cable for Radiation Fields written by Hiroyuki Tanaka and published by . This book was released on 1982 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using C0 60 gamma ray and fast neutron flux from a research reactor, in situ measurements of radiation induced optical attenuation have been conducted to characterize the radiation response of pure-silica core fibers and doped-silica core fibers. It has been revealed that pure-silica core fibers fabricated by Modified Rod-in-Tube method have much higher radiation resistivity than Ge/P-and B/F/P-doped-silica core MCVD fibers. Among the pure-silica core fibers, high-OH content grade has shown the highest resistivity in short wavelength region, whereas OH-free grade is useful in long wavelength region. Radiation hardening was observed in the high-OH content fiber during the test by long-term irradiation on pure-silica core fibers. (Author).

Photonic Quantum Technologies

Author : Mohamed Benyoucef
Publisher : John Wiley & Sons
ISBN 13 : 3527837434
Total Pages : 910 pages
Book Rating : 4.5/5 (278 download)

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Book Synopsis Photonic Quantum Technologies by : Mohamed Benyoucef

Download or read book Photonic Quantum Technologies written by Mohamed Benyoucef and published by John Wiley & Sons. This book was released on 2023-05-04 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic Quantum Technologies Brings together top-level research results to enable the development of practical quantum devices In Photonic Quantum Technologies: Science and Applications, the editor Mohamed Benyoucef and a team of distinguished scientists from different disciplines deliver an authoritative, one-stop overview of up-to-date research on various quantum systems. This unique book reviews the state-of-the-art research in photonic quantum technologies and bridges the fundamentals of the field with applications to provide readers from academia and industry, in one-location resource, with cutting-edge knowledge they need to have to understand and develop practical quantum systems for application in e.g., secure quantum communication, quantum metrology, and quantum computing. The book also addresses fundamental and engineering challenges en route to workable quantum devices and ways to circumvent or overcome them. Readers will also find: A thorough introduction to the fundamentals of quantum technologies, including discussions of the second quantum revolution (by Nobel Laureate Alain Aspect), solid-state quantum optics, and non-classical light and quantum entanglement Comprehensive explorations of emerging quantum technologies and their practical applications, including quantum repeaters, satellite-based quantum communication, quantum networks, silicon quantum photonics, integrated quantum systems, and future vision Practical discussions of quantum technologies with artificial atoms, color centers, 2D materials, molecules, atoms, ions, and optical clocks Perfect for molecular and solid-state physicists, Photonic Quantum Technologies: Science and Applications will also benefit industrial and academic researchers in photonics and quantum optics, graduate students in the field; engineers, chemists, and computer and material scientists.

Selected Topics on Optical Fiber Technology

Author : Moh Yasin
Publisher : BoD – Books on Demand
ISBN 13 : 9535100912
Total Pages : 684 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis Selected Topics on Optical Fiber Technology by : Moh Yasin

Download or read book Selected Topics on Optical Fiber Technology written by Moh Yasin and published by BoD – Books on Demand. This book was released on 2012-02-22 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive account of the recent advances and research in optical fiber technology. It covers a broad spectrum of topics in special areas of optical fiber technology. The book highlights the development of fiber lasers, optical fiber applications in medical, imaging, spectroscopy and measurement, new optical fibers and sensors. This is an essential reference for researchers working in optical fiber researches and for industrial users who need to be aware of current developments in fiber lasers, sensors and other optical fiber applications.

Spectroscopy for Materials Characterization

Author : Simonpietro Agnello
Publisher : John Wiley & Sons
ISBN 13 : 1119697328
Total Pages : 500 pages
Book Rating : 4.1/5 (196 download)

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Book Synopsis Spectroscopy for Materials Characterization by : Simonpietro Agnello

Download or read book Spectroscopy for Materials Characterization written by Simonpietro Agnello and published by John Wiley & Sons. This book was released on 2021-09-08 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: SPECTROSCOPY FOR MATERIALS CHARACTERIZATION Learn foundational and advanced spectroscopy techniques from leading researchers in physics, chemistry, surface science, and nanoscience In Spectroscopy for Materials Characterization, accomplished researcher Simonpietro Agnello delivers a practical and accessible compilation of various spectroscopy techniques taught and used to today. The book offers a wide-ranging approach taught by leading researchers working in physics, chemistry, surface science, and nanoscience. It is ideal for both new students and advanced researchers studying and working with spectroscopy. Topics such as confocal and two photon spectroscopy, as well as infrared absorption and Raman and micro-Raman spectroscopy, are discussed, as are thermally stimulated luminescence and spectroscopic studies of radiation effects on optical materials. Each chapter includes a basic introduction to the theory necessary to understand a specific technique, details about the characteristic instrumental features and apparatuses used, including tips for the appropriate arrangement of a typical experiment, and a reproducible case study that shows the discussed techniques used in a real laboratory. Readers will benefit from the inclusion of: Complete and practical case studies at the conclusion of each chapter to highlight the concepts and techniques discussed in the material Citations of additional resources ideal for further study A thorough introduction to the basic aspects of radiation matter interaction in the visible-ultraviolet range and the fundamentals of absorption and emission A rigorous exploration of time resolved spectroscopy at the nanosecond and femtosecond intervals Perfect for Master and Ph.D. students and researchers in physics, chemistry, engineering, and biology, Spectroscopy for Materials Characterization will also earn a place in the libraries of materials science researchers and students seeking a one-stop reference to basic and advanced spectroscopy techniques.

Cities and Their Vital Systems

Author : Advisory Committee on Technology and Society
Publisher : National Academies Press
ISBN 13 : 9780309037860
Total Pages : 1298 pages
Book Rating : 4.0/5 (378 download)

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Book Synopsis Cities and Their Vital Systems by : Advisory Committee on Technology and Society

Download or read book Cities and Their Vital Systems written by Advisory Committee on Technology and Society and published by National Academies Press. This book was released on 1989 with total page 1298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.