Download or read book Radiation induced Transient Attenuation of PCS Fiber written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Some applications of optical fibers require their exposure to intense radiation fields. This exposure can potentially degrade performance of a fiber data link. Research at Los Alamos National Laboratory has recently concentrated on development of an understanding of such radiation effects at short times, less than 100 ns. In previous papers we have identified a particular type of fiber, ITT plastic-clad-silica (PCS) with Suprasil core as optimum for short time radiation-induced attenuation, but that work used very large doses of ionizing radiation, close to 1 Mrad. For these high dose exposures, moderate success in understanding the transient nature of the attenuation was realized with a geminate recombination model. In this paper, we report further studies with ITT PCS fiber over a range of doses and wavelengths. Data on other PCS fibers is included that provide performance comparable to the ITT product. Comparison to several fluorsilicate fibers is also included.

Download or read book Transient Attenuation in Optical Fibers written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Low and high energy pulsed electron beams were used to generate radiation-induced transient attenuation in high-OH, Suprasil core, PCS fibers, demonstrating the energy dependence of the radiation damage and recovery mechanisms. A radiation resistant low-OH fiber was studied and its performance contrasted to that of high-OH materials. Several fibers with differing core compositions were also studied.

Download or read book Radiation induced Transient Attenuation of Optical Fibers at 800 and 1300 Nm written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiation-induced absorption in optical fibers has been a subject of considerable interest throughout the world. As availability and applications of fibers have evolved from ''first window'' systems operating near 850 nm to ''second window'' systems near 1300 nm, interest in wavelength dependence of radiation effects in optical fibers has similarly evolved. The present work summarizes second-window, radiation-induced transient absorption measurements in optical fibers for times shorter than 5 .mu.s. Comparisons to first window data for these fibers are also presented. Only high purity silica fibers with low-OH concentrations were used in the present study to avoid the large OH absorption band in this region. This paper also collects first window data on several high-OH optical fibers.

Download or read book MC 6 Radiation Effects on Fiber Optic Systems and Components written by and published by Information Gatekeepers Inc. This book was released on with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book MC 6 Fiber Optics in Adverse Environments written by and published by Information Gatekeepers Inc. This book was released on with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ft 1 Fiber Optics Used in Harsh Environment written by and published by Information Gatekeepers Inc. This book was released on with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical Fibers in Adverse Environments written by Didier Boucher and published by . This book was released on 1984 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiation induced Transient Absorption in Optical Fibers written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Transient absorption in optical fibers has been studied with emphasis on fast absorption components. Radiation damage was induced with a Febetron 706 electron accelerator, modified to deliver an electron pulse width of 1.1 ns. Dye lasers were synchronized to the accelerator to provide a light pulse through the fiber during the radiation pulse. The output light pulse was detected with a biplanar vacuum photodiode. Four scope traces were used on each electron pulse to monitor the Febetron output, the input drive pulse, and two records of the output pulse on two sweep speeds. Detailed data were acquired for times less than 100 ns after irradiation. An insulated enslosure was used to vary fiber temperature from -30°C to + 250°C. Several fibers were studied with emphasis on ITT T303 PCS fiber. Data were acquired at 600 and 850 nm. Theoretical modeling of the data is presented.

Download or read book Fiber Optics Weekly Update written by and published by Information Gatekeepers Inc. This book was released on with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Procedure for Measuring Radiation Induced Attenuation in Optical Fibers and Optical Cables written by and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This test procedure outlines methods for measuring both the steady state response of optical fibers and cables exposed to continuous radiation and the transient response of optical fibers and cables exposed to a pulse of radiation. It can be used to determine the level of radiation-induced attenuation produced in single-mode or multimode optical fibers, in either cabled or uncabled form. Fiber optics, Nuclear radiation effects.

Download or read book Pending Nominations of Gregory B Jaczko and Peter B Lyons written by United States. Congress. Senate. Committee on Environment and Public Works and published by . This book was released on 2006 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measuring Transient Radiation Effects in Optical Fibers written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We propose a new method for measuring transient radiation effects in optical fibers on a nanosecond timescale. The method, which incorporates a streak camera, allows more precise time resolution than other methods and has the advantage of measuring the radiation-induced attenuation as a function of wavelength and time simultaneously. By choosing different light sources and sweep speeds, radiation-induced attenuation may be measured under a variety of experimental configurations. Examples of the type of output obtained with our method are given.

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:

Download or read book Fiber Optics in Adverse Environments III written by and published by . This book was released on 1987 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publications of Los Alamos Research written by Los Alamos National Laboratory and published by . This book was released on 1984 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Radiation Effects in Optical Materials written by Paul Warren Levy and published by . This book was released on 1985 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: