[ppt]fiber optics - every study stuff for students . . . · web view2011/10/01 · fiber types a...
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Bharti Airtel Limited• It is commonly known as Airtel, is an
Indian telecommunication company that operates in 19 countries and is headed by Sunil Bharti Mittal.It operates a GSM network in all countries, providing 2G or 3G services .
• Airtel is the fifth largest telecom operator in the world with over 207.8 million subscribers across 19 countries at the end of 2010.
• It is the largest cellular service provider in India, with over 164.61 million subscribers at the end of 2011 April.
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• Bharti Airtel is the first Indian telecom service provider to achieve the Cisco Gold Certification.
• The company also provides land-line telephone services and broadband Internet access (DSL) in over 96 cities in India.
• The company has a submarine cable landing station at Chennai.
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FIBER OPTICS
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What Is Fiber Optics ?
• Transmitting communications signals over hair thin strands of glass or plastic.
• Not a "new" technology
• Used commercially for last 25 years.
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Fiber Optic Advantages
• Fiber is the least expensive, most reliable method for high speed and long distance communications.
• Fiber Optics cable have greater bandwidth than metal cables due to which they can carry more data.
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Fiber Has More Capacity
This single fiber can carry more communications than the giant copper cable.
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Fiber Types
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Why Use Fiber Optics?
• Economics• Speed• Distance• Weight/size• Freedom from interference• Electrical isolation• Security
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Fiber Optic Communications
• Applications include – Telephones– Internet– LANs - local area networks– CATV - for video, voice and Internet connections– Utilities - management of power grid– Security - closed-circuit TV and intrusion sensors– Military – everywhere.
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Fiber Optic Applications
• Fiber is already used in:– > 90% of all long distance telephony– > 50% of all local telephony– Most CATV networks– Most LAN (computer network) backbones– Many video surveillance links.
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Fiber Structure
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Fiber Technology
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Light Used In Fiber Optics
• Fiber optic systems transmit using infrared light, invisible to the human eye, because it goes further in the optical fiber at those wavelengths.
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Fiber Optic Cable
• Protects the fibers wherever they are installed.
• May have 1 to over 1000 fibers.
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Fiber Optic Connectors
• Terminates the fibers.• Connects to other fibers or transmission
equipment
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Jobs In Fiber Optics
• Designing components• Manufacturing fiber, lasers, etc.• Designing systems• Installing networks• Training and teaching
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Fiber Optic Manufacturing
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Fiber Optic Applications
• Outside Plant vs Premises Installations
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Fiber Optic Installation - Outside Plant
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Fiber Optic Installation -Premises
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Teaching Fiber Optics