SISTec Optical communication Presentation
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This document discusses the structure, propagation of light, modes of propagation, loss characteristics, wavelength dependence of attenuation, regeneration of digital signals, characteristics including dispersion, bandwidth, attenuation, microbend loss, numerical aperture, strength, and applications of optical fibers. Key topics covered include the core-cladding structure that allows total internal reflection of light, different propagation modes, factors that cause attenuation, uses in telecommunications, data transmission, imaging, sensing, and other industrial sectors.
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Abstract:
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networks to an increasing number of users. This fact is mainly due to the increase in the Internet
traffic data, which is related with the higher demand of online added-value online content, as a result
of a society increasingly more interconnected. New emergent radio technologies play a key role to
supply these high-demand services to customer, e.g., UWB, WIMAX and LTE-advanced. [1-3]
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Title:
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Abstract:
Current network and telecommunication systems are required to provide higher data rates in access
networks to an increasing number of users. This fact is mainly due to the increase in the Internet
traffic data, which is related with the higher demand of online added-value online content, as a result
of a society increasingly more interconnected. New emergent radio technologies play a key role to
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How to carry them to final customer? How to backup these services?
Free-space optics (FSO), Radio-over-fibre (RoF) and RF/FSO Hybrid communication systems
become a solution to deploy these services on indoor/outdoor scenarios avoiding architecture
problems on WAN environments, e.g., university campus, companies’ parks [4]. Moreover, these
systems will fit emergency scenarios, e.g. earthquakes, tsunamis, where the classical
communications infrastructure cost and time replacement is very high [5]. On the other hand, the
implementation of RF/FSO or RoF systems are enclosed in the new green communications issues,
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WiMAX IEEE 802.16e Converged Radio-over-Fiber in PON," Mwp: 2009 International Topical
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[2] J. Perez, M. Morant, R. Llorente, and J. Marti, "Joint Distribution of Polarization-Multiplexed
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Jun 15 2009.
[3] R. Llorente, T. Alves, M. Morant, M. Beltran, J. Perez, A. Cartaxo, and J. Marti, "Ultrawideband
radio signals distribution in FTTH networks," IEEE Photonics Technology Letters,
vol. 20, pp. 945-947, May-Jun 2008.
[4] E. Leitgeb, M. S. Awan, P. Brandl, T. Plank, C. Capsoni, R. Nebuloni, T. Javornik, G. Kandus,
S. S. Muhammad, F. Ghassemlooy, M. Loschnigg, and F. Nadeem, "Current Optical
Technologies for Wireless Access," Contel 2009: Proceedings of the 10th International
Conference on Telecommunications, pp. 7-17, 2009.
[5] S. Bloom, E. Korevaar, J. Schuster, and H. Willebrand, "Understanding the performance of
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[6] Z. Yi, P. Chowdhury, M. Tornatore, and B. Mukherjee, "Energy Efficiency in Telecom Optical
Networks," Communications Surveys & Tutorials, IEEE, vol. 12, pp. 441-458.
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Optical fibers guide light through internal reflection using a core and cladding material where the core has a higher refractive index. There are two main types of optical fibers: single-mode fibers which support only one propagation mode and multimode fibers which support multiple propagation modes. A key difference is that multimode fibers have larger cores but also suffer from intermodal dispersion where different modes arrive at different times.
Mode ppt.bmk
This document discusses modes in optical fibers. It begins with an introduction to the basic principles of light propagation and numerical aperture. It then covers mode theory, modes in planar waveguides, the mode condition, and TE and TM modes. Finally, it discusses single-mode and multi-mode fibers, including their properties and light propagation characteristics. Single-mode fibers only support one mode and allow for higher capacity transmission over longer distances without modal dispersion. Multi-mode fibers have larger cores and support multiple modes, making them suited for shorter transmission lengths.
Optical Fiber Sources And Detectors
The document discusses fiber optics and presents information on various topics related to fiber optic communication including:
- A brief history of the development of fiber optics from 1968 to 1982.
- The basic components and structure of an optical fiber including the core and cladding.
- The advantages and disadvantages of using optical fibers for communication.
- Different types of optical fibers used based on their core and cladding materials.
- Sources of loss in optical fiber cables such as absorption, scattering, and bending.
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Optical Fibre Detector
This document discusses optical fiber detectors. It describes the basic types of optical fiber detectors including PN photodiodes, PIN photodiodes, and avalanche photodiodes. It explains how each detector works by absorbing photons and generating electron-hole pairs that produce a photocurrent. The document also discusses parameters that characterize detector performance such as responsivity, quantum efficiency, and detectivity. Finally, it outlines different types of fiber sensors including intrinsic sensors like microbend and flow sensors, and extrinsic sensors for applications like level detection, pressure sensing, temperature measurement, and velocity measurement.
Optical fiber communiction system
This document provides an overview of optical fibers, including their evolution, structure, working principles, classification, communication systems, advantages and applications. It discusses how optical fibers guide light using total internal reflection. Fibers are classified based on mode (single or multi-mode) and refractive index profile (step or graded). Key advantages are high bandwidth, low attenuation, immunity to EMI, and security. Applications include telecommunications, broadband, medicine, military and more. Optical fibers have become the backbone of long-distance networks since the 1980s due to refinements in manufacturing.
optical fibre ppt for download visit http://nowcracktheworld.blogspot.in/
Optical fibre
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optical fibre ppt for download visit http://nowcracktheworld.blogspot.in/
optical fibre ppt for download visit http://nowcracktheworld.blogspot.in/
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Millimeter Wave mobile communications for 5g cellular
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Optical fiber refers to the transmission of information as light impulses along a glass or plastic wire. There are three main types of optical fiber: multimode, single mode, and photonics. Optical fiber has several advantages over metal cables, including greater bandwidth, lower power loss allowing for longer transmission distances, immunity to electromagnetic interference, lighter weight, and lower safety risks. However, optical fiber also has higher installation costs and requires protection and signal repeating over long distances. Optical fiber has applications in networking, high-speed data transmission, harsh environments, and various industries.
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Optical fiber refers to the transmission of information as light impulses along a glass or plastic wire. There are three main types of optical fiber: multimode, single mode, and photonics. Optical fiber has several advantages over metal cables, including greater bandwidth, lower power loss allowing for longer transmission distances, immunity to electromagnetic interference, lighter weight, and lower safety risks. However, optical fibers can be more fragile and expensive to install than copper cables. Optical fiber has applications in networking, high-speed data transmission, harsh environments, and various industries.
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FIBER OPTIC RECENT TRENDS
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Optical fibres are thin, flexible strands of glass or plastic that transmit light signals over long distances. They consist of a core for transmitting light, a cladding layer surrounding the core with a lower refractive index, and an outer buffer coating. Optical fibres work on the principle of total internal reflection, where light entering the core at a certain angle reflects off the cladding, bouncing back into the core and allowing signals to travel through the fibre with minimal loss. Optical fibres are widely used in telecommunications and provide higher bandwidth and data transmission rates compared to traditional copper wires.
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Millimeter waves is considered as a key enabling technology for the future wireless networks, 5G network.
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SISTec Optical communication Presentation
- 2. 5/22/20143 PROPAGATION OF LIGHT IN FIBERS
- 4. 5/22/20145 LOSS OF ELECTRIC FIELD IN CLADDING
- 5. 5/22/20146 WAVE LENGTH DEPENDENCE OF FIBER ATTENUATION
- 6. 5/22/20147 A Digital Signal Before (noisy and attenuated) and After Regeneration
- 7. 5/22/20148 Characteristics of Fibers Dispersion smaller core dia– less path length Model dispersion G.I – instead of S.I S.M Bandwidth Dispersion Attenuation Micro bend loss,Bend Radius Increases loss, May break. Numerical Aperture MM– NA=0.21, SM– NA=0.11 Fiber Strength:- Greater than Stainless Steel
- 8. 5/22/20149 APPLICATION OF FIBER OPTICS Wide band width Elimination Of Ground Loops Sensor applications Image guide applications Prefered medium for nuclear Used in defence,railway,power sector, telecom and data communications