collect information about optical fibre. Based on this information, Explain the construction and working of a typical optical fibre from resources on world wide Web, collect the information about use of optical fibres in our country
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An optical fibre is very thin fibre made of
glass or plastic having radius about a micrometer (10-6 m). A bunch
of such thin fibres form a light pipe.
Construction:
Each fibre consists of a core and cladding. The refractive index of core is greater than the refractive index of cladding.
usually the refractive indices of core is 1.7 and cladding is 1.5 .
A bundle of optical fibres is called a light pipe .
Principle of working:
The basic principle of working of optical fibre is Total internal Reflection.
Working:
A ray of Light entering an optical fibre meets the interface between core and the cladding at an angle greater than the critical angle. Hence it undergoes total internal Reflection. and finally the ray emerges at the other end with practically no loss of intensity.
Application of Optical Fibres:
1.Optical fibres are used by doctors in 'Endoscope' to see all organs inside the human body. For example throat, intestines... etc.
2.Optical fibres are used to transmit communication signals through light pipes.
3.Optical fibres are used in International telephone cables laid down under the sea.
4. In Hitech buildings, optical fibres are used to bring sunlight from the roof to the other interior parts of the building.
5. Optical sensors fibres are used to measure temperature , pressure and rate of flow of liquids.
Construction:
Each fibre consists of a core and cladding. The refractive index of core is greater than the refractive index of cladding.
usually the refractive indices of core is 1.7 and cladding is 1.5 .
A bundle of optical fibres is called a light pipe .
Principle of working:
The basic principle of working of optical fibre is Total internal Reflection.
Working:
A ray of Light entering an optical fibre meets the interface between core and the cladding at an angle greater than the critical angle. Hence it undergoes total internal Reflection. and finally the ray emerges at the other end with practically no loss of intensity.
Application of Optical Fibres:
1.Optical fibres are used by doctors in 'Endoscope' to see all organs inside the human body. For example throat, intestines... etc.
2.Optical fibres are used to transmit communication signals through light pipes.
3.Optical fibres are used in International telephone cables laid down under the sea.
4. In Hitech buildings, optical fibres are used to bring sunlight from the roof to the other interior parts of the building.
5. Optical sensors fibres are used to measure temperature , pressure and rate of flow of liquids.
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Optical fiber is made up of drawing glass which is also known as silica. Optical fiber is used to transmit light between the two ends of the fiber. Metal wires are replaced by fibers. It is used for communication purposes and these days its the internet broadband is made up with optical fiber.
Following are the uses of Optical Fibre:
- Internet: Fibre optic transmits a large amount of data at very high speed.
- Cable Televisions: This is used for transmitting cable signals for high definition televisions as well as others, optical fibers are cheaper than copper wire.
- Telephone: With optical fiber, the voice quality is clear whether you are calling locally or internationally
- Computer Networking: Networking between different computers in order to transfer files etc.
- Medical Purposes: Fibre optic is also used in microscopy and biomedical research.
- Lightning: It provides solution to lighting.
- Automotive Industry: It transmits signals between the parts of a car.
Following are the uses of Optical Fibre:
- Internet: Fibre optic transmits a large amount of data at very high speed.
- Cable Televisions: This is used for transmitting cable signals for high definition televisions as well as others, optical fibers are cheaper than copper wire.
- Telephone: With optical fiber, the voice quality is clear whether you are calling locally or internationally
- Computer Networking: Networking between different computers in order to transfer files etc.
- Medical Purposes: Fibre optic is also used in microscopy and biomedical research.
- Lightning: It provides solution to lighting.
- Automotive Industry: It transmits signals between the parts of a car.
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