Introduction of optical fiber
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The document discusses the structure, applications, advantages, and future of optical fiber, including its use in local and wide area networks for high speed data transfer without signal loss or noise. It describes the core, cladding, buffer, and jacket layers of an optical fiber cable and applications in telecommunications, data transmission, cable TV, medical devices, and more. The document also covers bandwidth, data rates, undersea fiber optic connections, and the role of fiber optics in internet infrastructure.
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1. Optical fiber communication systems have several advantages over traditional copper wire systems including lower transmission loss over longer distances, higher bandwidth capacity, smaller size and weight, greater security due to signal containment within the fiber, and immunity to electromagnetic interference.
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IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
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Transmission Medium
Transmission media are located below the physical layer and are used to transmit signals representing data in the form of electromagnetic energy. There are two main types of transmission media: guided and unguided. Guided media like twisted pair cable, coaxial cable, and fiber optic cable provide a conduit for transmission. Factors like transmission rate, cost, environmental resistance, and distance must be considered when choosing a transmission medium. Twisted pair is the most commonly used guided medium and comes in shielded and unshielded varieties. Coaxial cable provides higher bandwidth but is more difficult to install. Fiber optic cable has the highest bandwidth but is also the most expensive. Unguided media like radio waves, infrared, and microwaves transmit
Network Technology Presentation Bvh V01
The document discusses several telecommunications associations and standards including TIA, EIA, BICSI and their roles in establishing standards. It also summarizes the key components and functions of an Entrance Facility (EF), Equipment Room (ER), and Telecommunications Room (TR). Additionally, it outlines how technologies like Gigabit Ethernet, VoIP, wireless networking, audiovisual systems, and Power over Ethernet have impacted cable infrastructure design by increasing bandwidth needs and requiring additional pathways, spaces and rack space. Careful planning of the cable infrastructure is necessary to allow future technologies to run seamlessly.
Fog attenuation penalty analysis in terrestrial optical wireless communicatio...
In metropolitan communication infrastructures a revolutionary technique is emerge known as terrestrial optical wireless communication (OWC), which makes a high-rise building connection is possible. Even with this solution, there are many other problems like the influence of haze and fog in the propagation channel which obstruct and scatter OWC propagation light and consequently led to a big attenuation, due to propagate in temporal, angular and spatial of the light signal. Not to mention the minimum visibility that discourages the implementation of the pointing errors (PE) and tracking system. This present work aims to analyze the interrelation between multiple scattering (dense fog, heavy fog, light fog, heavy haze and light haze) and receiver PE under modified duo-binary return-to-zero (MDRZ) system. We found that PE caused by beam swag is the main controlling factor and industriously minimize the link margin, signal-to-noise ratio (SNR), and raise the bit error rate (BER) when there is an increasing the turbulence strength and the track length. We recommended to guarantee transmitter– receiver alignment by installing a variable field of view (FOV) receiver (a tracking system) to overcome the scattering impact of the fog that make render urban laser communication effective in the presence of PE.
Wireless communication
This document discusses various aspects of wireless communication. It begins by explaining the benefits of wireless communication such as freedom from wires and global coverage. It then describes how wireless communication works by transmitting electromagnetic waves between a transmitting and receiving antenna. It provides examples of typical frequency bands used for different wireless technologies like FM radio, TV, and WiFi. The document goes on to explain key concepts such as channels and discusses different types of wireless transmission including radio, microwave, infrared and light waves. It also outlines current wireless systems including cellular networks, wireless LANs, satellite systems, personal area networks and paging systems.
M1803037881
This document discusses using fiber optic and VSAT technologies for future air traffic management networks. It analyzes the benefits of using fiber optic links over VSAT links for critical air traffic control applications that require reliable, low latency communication. Fiber optic links provide higher bandwidth, lower delay of 11-24ms compared to 350ms for VSAT, and help solve problems of packet loss, delay, and voice/data quality issues. The document evaluates these networks using WireShark and concludes fiber optic improves bandwidth, reduces costs, enhances safety and reliability for air traffic management communications.
OWC NEW (1).pptx
This document provides an overview of free-space optical (FSO) communication. It begins with an introduction to FSO and its advantages over radio frequency and fiber optic communication. These include large unregulated spectrum, high security, and lower costs of deployment. The document then discusses the basics of FSO including components of transmitters and receivers. It outlines some key challenges of FSO such as misalignment, attenuation from weather, and atmospheric turbulence. Applications of FSO discussed include wireless local and personal area networks, underwater networks, and airborne networks. The document concludes by noting that FSO is a promising alternative to RF technology that can help redefine mobile networks.
Free space optical communication
This presentation provides an overview of free space optical communication (FSO). It discusses the history of FSO beginning with Alexander Graham Bell's photo-phone invention in 1880. FSO uses visible or infrared light to transmit data through free space. It has several advantages over traditional wired networks such as lower costs, high speeds, and unlimited spectrum. However, FSO also has disadvantages like vulnerability to weather conditions and need for line-of-sight access. The presentation describes the basic working of FSO systems and components. It outlines applications in areas like metro networks, enterprise connectivity, and space communications. In conclusion, FSO provides a cost-effective option for short-range, high-speed data transmission where physical connections are impractical
Establishment Network by Using FSO Link Based on MD Code for Hybrid SCM-SAC-O...
Since the wireless systems are working under nature environments and influenced by turbulence, weather in Iraq that leads to extended amount of fading signal, dissipation or attenuation. Basic “hybrid Subcarrier Multiplying Spectral Amplitude Coding (SCM-SAC) of Optical Code Division Multiple Access (OCDMA)" indoor or outdoor optical system depends on generally “Multi-Diagonal (MD)" security code by using optical space known as “Free Space Optic (FSO)" that was proposed in this work. It is found that the mention hybrid wireless systems can be used in operating mesh networks. The main proposed idea of hybrid optical technique was analyzed and simulated by normally taking into simulation account that the directly effecting by rain and haze attenuations. In addition, there are mention and description for atmospheric effects, FSO mesh network, modulation scheme, simulation, and the data security. From simulation results, the hybrid system using MD code produces reduced “bit-error rate (BER)" at heavy storm rain to distance or range of 500 m and at drizzle rain up to 2500 m range. And also investigates the performance of using the proposed system with radio over fiber (RoF) for UWB signals through indoor propagation in building applications of wireless channel.
Local area network
This document discusses local area networks (LANs) and the use of fiber optic cables in LAN architecture. It describes different LAN topologies including bus, ring, star and their implementations. It compares fiber optic cables favorably to copper cables, noting fiber's higher bandwidth, reliability and longer transmission distances. The document also discusses specific ring-based standards like FDDI that use fiber optic cables to interconnect lower-speed LANs or mainframe computers at speeds up to 100 Mbps. Overall, the document promotes the use of fiber optic cables in LANs for their benefits over copper in supporting growing bandwidth demands.
Media assignment gbuusu solomon
This document discusses different types of network media used to transmit data in computer networks. It describes guided (wired) media such as twisted pair cable, coaxial cable, and fiber optic cable. It also describes unguided (wireless) media such as radio waves, microwaves, and infrared waves. The key differences between guided and unguided media are that guided media uses a physical conductor to transmit signals while unguided media broadcasts signals through the air.
computer network
- Wireless LAN (WLAN) uses radio waves to connect devices in a local area without wires. It allows mobility within the network coverage area while maintaining an internet connection.
- Benefits of WLAN include easier installation, scalability, and reduced costs compared to wired networks. Drawbacks include greater susceptibility to interference and lower speeds.
- Key applications of WLAN include extending a wired LAN, connecting nearby buildings, providing mobile access on campuses, and temporary ad hoc networks.
Application of fiber optic communication
Fiber optic communication has several military applications due to its advantages over traditional copper wire. It allows for repeaters every 16km compared to 500m for coax, is lighter weight, and has higher bandwidth for transmitting multiple signals. Fiber optic cables are also more secure as they are not affected by electromagnetic or radio frequency interference and are very difficult to tap. One weapon application is the FOG-M missile, which uses a fiber optic cable to transmit video feedback to the gunner for guidance. Fiber optics are also used for optical computing, military surveillance and sensors due to their ruggedness, and aboard vehicles since they are lighter and immune to electromagnetic interference.
ASMI PRASAD 1RG17CS007 SEMINAR PPT (1).pdf
This document summarizes a technical seminar presentation on free space laser communication. The presentation included an introduction to laser communication systems and their advantages over traditional wired and wireless technologies. It also provided block diagrams of the system components including the source, modulator, driver, laser diode, transmit optics, receiver optics, photo detector, and demodulator. Applications of free space laser communication discussed included outdoor wireless access, storage area networks, last-mile access, metro-network extensions, fiber backup, backhaul, bridging WAN access, and military access. In conclusion, free space laser communication was described as a low-cost, rapidly deployable supplemental technology to fiber and radio wireless systems.
Medium of Transmitting DATA by marwan inayat
This document discusses different types of transmission media including twisted pair cables, coaxial cables, fiber optics, microwave transmission, and satellite. It provides details on each medium, such as their advantages and disadvantages as well as common applications. Guided media like twisted pair, coaxial cable, and fiber optic cable provide a physical conduit for transmitting signals while wireless media such as microwave and satellite transmit electromagnetic waves without a physical path. Twisted pair is the most commonly used but has low bandwidth, while fiber optic cable has very high bandwidth but is more expensive to install and maintain.
Medium of transmission data by marwan inayat
This document discusses different types of transmission media including twisted pair cables, coaxial cables, fiber optics, microwave transmission, and satellite. It provides details on each medium, such as their advantages and disadvantages as well as common applications. Guided media like twisted pair, coaxial cable, and fiber optic cable provide a physical conduit for transmitting signals while unguided media like microwave and satellite transmit electromagnetic waves without a physical path.
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Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
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Introduction of optical fiber
- 1. WELCOME TO PRESENTATION Submitted To Fahmida Hossain Tithi Assistant Professor Department Of EEE Daffodil International University Submitted By: 152-33-2644 151-33-2364 153-33-3002 153-33-3023 153-33-3065
- 3. STRUCTURE OF OPTICAL FIBER CABLE CORE CLADDING BUFFER JACKET Figure: Structure of the optical fiber cable.
- 5. APPLICATION OF OPTICAL FIBER Telecommunication Transmitting data Local area network Medical Sector : ECG, Endoscope Cable TV Industrial/Commercial Military
- 6. Why Optical Fiber ? High Speed of Data Transfer No light loss Less Signal noise Light weight Easy to install No grounding and protection
- 7. LOCAL-AREA NETWORK A computer network covers a small area called LAN for example one site or building. Figure : LAN (Local Area Network).
- 8. Wide area network Wide area network covers a geographically large area and called (WAN). Figure : WAN (Wide Area Network).
- 9. Bandwidth is the amount of data that can be transmitted in a fixed amount of time. Data rate 10GB/sec Fiber Cable Copper Cable/ coaxial cable 1GB/sec
- 10. Optical fiber connection Under sea
- 11. Future of optical Fiber
- 12. Fiber Optics in Internet