Optical Fiber Fusion

Optical Fiber Fusion Splicing $233.03 No Synopsis Available

Fusion Optical Fiber Coupling by Saktioto [Paperback] $172.06 Over the past two decades, a mechanism process to obtain Single Mode Fiber (SMF) coupling has emerged as a visible means for fiber optic communication. Generally, the process is always described at initial input and output result, whereas the source waves transmitting along the coupled fibers have not been fully understood. Although modeling of fiber coupling provides good understanding of the process, but experimentally the determination of the coupling range has not been clearly established. In applications optical fiber coupling is used to control and to apply power propagation from one fiber to another by splitting it as a junction. However, the coupling fiber fabrication is complicated especially at the junction. This may be due to the fact that at coupling region some parameters are affected by the structural and geometrical fiber itself. This book experimentally describes the better behavior and operation of fiber couplers at different side of measurements. Models are also proposed, and compared to experiment. Author: Saktioto Binding Type: Paperback Number of Pages: 224 Publication Date: 2010/11/01 Language: English Dimensions: 6.00 x 9.02 x 0.51 inches

Optical Fiber $58.94 Optical Fiber. Multimode optical fiber, Singlemode optical fiber, Optical fiber connector, Total internal reflection, Waveguide (optics), Transverse mode, Fiber Bragg grating Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 68 Publication Date: 2010/07/25 Language: English Dimensions: 5.98 x 9.01 x 0.16 inches

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Optical Fiber Communication Systems $163.93 This comprehensive book makes the important technologies and mathematical concepts behind todays optical communications systems accessible and understandable to practicing and future electrical and communication engineers. Featuring nearly 400 figures and over 900 equations, the book provides the practical engineering details and mathematical tools necessary to analyze and design optical fiber systems. Author: Kazovsky, Leonid/ Willner, Alan E./ Benedetto, Sergio Series Title: Artech House Optoelectronics Library Binding Type: Hardcover Number of Pages: 714 Publication Date: 1996/10/31 Language: English Dimensions: 9.25 x 6.35 x 1.58 inches

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Optical Fiber Telecommunications (Hardcover) $183.59 Optical Fiber Telecommunications V (A&B) is the fifth in a series that has chronicled the progress in the research and development of lightwave communications since the early 1970s. Written by active authorities from academia and industry, this edition not only brings a fresh look to many essential topics but also focuses on network management and services. Using high bandwidth in a cost-effective manner for the development of customer applications is a central theme. This book is ideal for R&D engineers and managers, optical systems implementers, university researchers and students, network operators, and the investment community.Volume (A) is devoted to components and subsystems, including: semiconductor lasers, modulators, photodetectors, integrated photonic circuits, photonic crystals, specialty fibers, polarization-mode dispersion, electronic signal processing, MEMS, nonlinear optical signal processing, and quantum information technologies. Volume (B) is devoted to systems and networks, including: advanced modulation formats, coherent systems, time-multiplexed systems, performance monitoring, reconfigurable add-drop multiplexers, Ethernet technologies, broadband access and services, metro networks, long-haul transmission, optical switching, microwave photonics, computer interconnections, and simulation tools.Biographical SketchesIvan Kaminow retired from Bell Labs in 1996 after a 42-year career. He conducted seminal studies on electrooptic modulators and materials, Raman scattering in ferroelectrics, integrated optics, semiconductor lasers (DBR , ridge-waveguide InGaAsP and multi-frequency), birefringent optical fibers, and WDM networks. Later, he led research on WDM components (EDFAs, AWGs and fiber Fabry-Perot Filters), and on WDM local and wide area networks. He is a member of the National Academy of Engineering and a recipient of the IEEE/OSA John Tyndall, OSA Charles Townes and IEEE/LEOS Quantum Elec

Subwavelength and Nanometer Diameter Optical Fibers $330.54 Subwavelength and Nanometer Diameter Optical Fibers provides a comprehensive and uptodate coverage of research on nanoscale optical fibers including the basic physics and engineering aspects of the fabrication, properties and applications. The book discusses optical micro/nanofibers that represent a perfect fusion of optical fibers and nanotechnology on subwavelength scale and covers a broad range of topics in modern optical engineering, photonics and nanotechnology spanning from fiber optics, nearfield optics, nonlinear optics, atom optics to nanofabrication and microphotonic components/devices. It is intended for researchers and graduate students in the fields of photonics, nanotechnology, optical engineering and materials science.Dr. Limin Tong is a professor at Department of Optical Engineering and State Key Laboratory of Modern Optical Instrumentation of Zhejiang University, China; Dr. Michael Sumetsky is a researcher at OFS Laboratories, USA. Author: Tong, Limin/ Sumetsky, Michael Series Title: Advanced Topics in Science and Technology in China Binding Type: Hardcover Number of Pages: 228 Publication Date: 2010/06/04 Language: English Dimensions: 9.30 x 6.40 x 0.80 inches

Optical Fiber Communications, 4th Edition $113 The fourth edition of this popular text and reference book presents the fundamental principles for understanding and applying optical fiber technology to sophisticated modern telecommunication systems. Optical-fiber-based telecommunication networks have become a major information-transmission-system, with high capacity links encircling the globe in both terrestrial and undersea installations. Numerous passive and active optical devices within these links perform complex transmission and networking functions in the optical domain, such as signal amplification, restoration, routing, and switching. Along with the need to understand the functions of these devices comes the necessity to measure both component and network performance, and to model and stimulate the complex behavior of reliable high-capacity networks.

Optical Fiber Sensors Components and Subsystems $166.78 This handson problemsolving guide brings together the knowledge of international authors in the field to create a stateoftheart picture of optical fiber sensors. It includes technology overviews, surveys applications, and describes measurement and implementation techniques. Helpful realworld case studies are also featured. Author: Culshaw, Brian/ Dakin, John Series Title: Optical Fiber Sensors Series Number: III Binding Type: Hardcover Number of Pages: 252 Publication Date: 1997/01/01 Language: English Dimensions: 9.32 x 6.26 x 0.74 inches

Specialty Optical Fiber Technology for Optical Devices and Components (Hardcover) $236.12 As the emphasis in optical fiber research expands from transmission media to functional fiber devices, various types of specialty optical fibers are being actively developed. Especially in dense wavelength multiplexing (DWDM) systems, novel functions such as fiber filters, fiber MUX/DEMUX, fiber amplifiers, among others, are constantly needed and supplied by specialty fibers. Until recently, optical fibers were treated as passive transmission media with very little attention given to these novel fiber technologies.

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ILSINTECH Clad-Alignment Optical Fusion Splicer FTTH "SWIFT-F1" with Swift Connector (2)

description of fusion splicer

With increases in optical fiber cable density in recent years, the number of cores in ribbon-type optical fibers has been progressively increased and ribbon-type optical fibers, such as 16-core or 24-core optical fibers, have been progressivelyput to practical use. In order to collectively or in one operation fusion-splice the cores in such multi-core ribbon-type optical fibers by electric discharge, it is necessary to set the distance between the electric discharge electrodes large.

However, in the above-described fusion-splicing technique disclosed in Literature 1, when the distance between the electric discharge electrodes is set large, the middle portion of the path of electric discharge generated between theelectric-discharge electrodes is attracted upward, causing the path to be curved into a bow shape. FIG. 10 is a view illustrating a heat intensity distribution around the electric discharge electrodes according to the prior art fusion-splicingtechnique. This phenomenon is caused mainly by ascending airflows, which result from ambient air heated by electric discharge. Ascending airflows are generated in the direction of the arrow illustrated in FIG. 10, and these ascending airflows cause themiddle portion of the electric discharge path to be curved in the direction of the arrow. This results in, for example, the heat intensity distribution between the electric discharge electrodes, as illustrated in FIG. 10. Thus, the end portions ofoutermost optical fibers 3 (optical fibers proximal to the electric discharge electrodes 4) and optical fibers 3 positioned around the central zone would be heated to higher temperatures than the end portions of the other optical fibers 3. As a result,the end portions of optical fibers would have varying melting amount of fused portions, which prevents all the optical fibers 3 from being collectively or in one operation successfully fusion-spliced.

Therefore, it is an object of the present invention to provide optical fiber fusion splicer which can successfully fusion-splice together the end portions of optical fibers by electric discharge, regardless of the distance between the electricdischarge electrodes.

In order to achieve the above-described object, the optical fiber fusion splicer according to the present invention comprises (a) a pair of electric discharge electrodes provided opposed to each other along a predetermined axis; (b) a conductorelectrode disposed on one side with respect to a plane with the predetermined axis contained therein; and (c) means for generating electrostatic attraction in the direction tending from the plane toward the one side, between the conductor electrode andthe electric discharge path generated between the electric discharge electrodes, the means for generating electrostatic attraction being connected to the conductor electrode; (d) wherein end portions of optical fibers disposed on the other side withrespect to the above-described plane are fusion-spliced together by the electric discharge produced between the electric discharge electrodes.

In this optical fiber fusion splicer, when electric discharge is generated between the opposed electric discharge electrodes, electrostatic attraction is generated between the path of electric discharge (hereinafter, referred to as "electricdischarge path") and the conductor electrode disposed on the lower side with respect to the predetermined axis which extends between the electric discharge electrodes, namely, on the one side with respect to the plane including the predetermined axis. This electrostatic attraction attracts the electric discharge path towards the conductor electrode side (namely, towards the one side with respect to the above-described plane). Thus, the middle portion of the electric discharge path is prevented frombeing attracted upward by ambient air convection whereupon the electric discharge path to be curved into a bow-shape. Thus, the optical fiber fusion splicer according to the present invention is capable of fusion-splicing the end portions of opticalfibers to each other successfully, regardless of the distance between the electric discharge electrodes. This optical fiber fusion splicer is extremely effective, for example, in the case where the distance between the electric-discharge electrodes mustbe set large for collectively or in one operation fusion-splicing the respective cores of multi-core ribbon-type optical fibers. The electric-discharge path refers to the path of electrons or ionized gases, etc. resulting from electric dischargegenerated between the electric-discharge electrodes and is attributed to positive column, for example. Also, the electrostatic attraction refers to coulomb attraction, or attraction generated in accordance with Coulomb's law, being effectively activebetween areas charged with opposite polarities by electrostatic induction.

Preferably, the means for generating electrostatic attraction includes an electrical grounding portion. By connecting the electrical grounding section, grounded to the ground, to the conductor electrode, means for generating electrostaticattraction can simply constructed.

Preferably, the means for generating electrostatic attraction further includes a capacitive element connected between the conductor electrode and the electrical grounding portion. By disposing the capacitive element, such as a condenser, betweenthe conductor electrode and the electrical grounding portion, the amount of electrostatic attraction, which is generated between the electric-discharge path and the conductor electrode, can be controlled. Thus, it becomes possible to accomplish asuitable amount of electrostatic attraction acting on the electric-discharge path.

Preferably, the capacitive element is an element the capacitance of which is variable. Thus, the amount of electrostatic attraction, which is generated between the electric-discharge path and the conductor electrode can be continuously varied,so that it is made possible to control the amount by which the electrostatic attraction attracts the electric-discharge path, corresponding to the circumstances.

The optical fiber fusion splicer according to the present invention may include at least one pair of the conductor electrodes, which are opposed to each other in a direction substantially orthogonal to the predetermined axis. In this case, themeans for generating electrostatic attraction preferably includes capacitive elements the capacitances of which are variable, and a first capacitance control section for periodically varying the capacitance of each of the capacitive elements, whereineach of the capacitive elements is connected to a respective one of the conductor electrodes. Adopting this configuration makes it possible to periodically oscillate the electric discharge path between one conductor electrode side and the otherconductor electrode side, while preventing the middle portion of the electric-discharge path from being attracted upward. Namely, it becomes possible to scan the electric-discharge path along the longitudinal direction of optical fibers.

About the Author

With increases in optical fiber cable density in recent years, the number of cores in ribbon-type optical fibers has been progressively increased and ribbon-type optical fibers, such as 16-core or 24-core optical fibers, have been progressivelyput to practical use. In order to collectively or in one operation fusion-splice the cores in such multi-core ribbon-type optical fibers by electric discharge, it is necessary to set the distance between the electric discharge electrodes large.