25-04-2017, 02:33 PM
I want audio transmission using laser ppt
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data transmission using laser ppt
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I want audio transmission using laser ppt
26-04-2017, 10:38 AM
In spatial communication it is very difficult for obvious reasons, but the most important thing is that the most proven medium is laser-based data transmission. The use of lasers for telecommunications in space is an application of laser communications and visible light communication. In outer space, optical communication in free space is currently of the order of several thousand kilometers, but it has the potential to overcome interplanetary distances of millions of kilometers, using optical telescopes such as beam extenders and laser beams, transmits data perfectly and with Accuracy.
For years, laser light has simply been a system for light pipes around corners and in inaccessible places to allow the occult to be illuminated. But now, laser light has become a system of significant significance and use. Around the world, it is now used to transmit voice, television and data signals as light waves. Its advantages compared to conventional coaxial cable or pairs of braided wires are multiple. As a result, millions of dollars are spent to operate these light-wave communication systems. Interest in fiber as a medium began in 1966 when C. Kao and G.A. Hock ham in the Standard Telecommunications Laboratory predicated that by removing the impurities in the glass, 20 dB / km attenuations would be achievable. One of the most interesting developments of recent years in the field of telecommunications is the use of laser light to transport information over long distances. It has been proven in the past decade that the transmission of the light wave through the laser light is superior to the transmission through other lights. Typically, laser light has a much lower transmission loss per unit length (0.15-5db / km) and is not susceptible to electromagnetic interference. Economically also, it serves our purpose. Increasing cost and the lack of available space in congested metropolitan cities calls for the advent of a less expensive system.
Benefits of Laser Communication
1. Increased availability - Wireless bridges often offer high availability on leased lines, offering five-ness availability and fast response to downlink troubleshooting.
2. High Bandwidths - Wireless laser bridges can offer up to 10 gbps bandwidth, which is often greater than leased lines with a lower total cost of ownership
3. Unlicensed Operation - Unlike wireless radio bridges, free space optical links do not require an OFCOM license. This is because they do not work within the radio frequencies.
4. Compact and discreet - The hardware is small and compact and is suitable for discreet, street-level deployments in challenging high-density environments.
5. Fast Deployment - Leased lines can take 3-4 months to install. Laser links can be designed and installed within the minimum time scales.
6. Immune to RF interference - Ideal for areas where the use of leased lines is expensive and where high noise levels can interfere with radio transmitted data.
For years, laser light has simply been a system for light pipes around corners and in inaccessible places to allow the occult to be illuminated. But now, laser light has become a system of significant significance and use. Around the world, it is now used to transmit voice, television and data signals as light waves. Its advantages compared to conventional coaxial cable or pairs of braided wires are multiple. As a result, millions of dollars are spent to operate these light-wave communication systems. Interest in fiber as a medium began in 1966 when C. Kao and G.A. Hock ham in the Standard Telecommunications Laboratory predicated that by removing the impurities in the glass, 20 dB / km attenuations would be achievable. One of the most interesting developments of recent years in the field of telecommunications is the use of laser light to transport information over long distances. It has been proven in the past decade that the transmission of the light wave through the laser light is superior to the transmission through other lights. Typically, laser light has a much lower transmission loss per unit length (0.15-5db / km) and is not susceptible to electromagnetic interference. Economically also, it serves our purpose. Increasing cost and the lack of available space in congested metropolitan cities calls for the advent of a less expensive system.
Benefits of Laser Communication
1. Increased availability - Wireless bridges often offer high availability on leased lines, offering five-ness availability and fast response to downlink troubleshooting.
2. High Bandwidths - Wireless laser bridges can offer up to 10 gbps bandwidth, which is often greater than leased lines with a lower total cost of ownership
3. Unlicensed Operation - Unlike wireless radio bridges, free space optical links do not require an OFCOM license. This is because they do not work within the radio frequencies.
4. Compact and discreet - The hardware is small and compact and is suitable for discreet, street-level deployments in challenging high-density environments.
5. Fast Deployment - Leased lines can take 3-4 months to install. Laser links can be designed and installed within the minimum time scales.
6. Immune to RF interference - Ideal for areas where the use of leased lines is expensive and where high noise levels can interfere with radio transmitted data.
It can be understood in the following video:
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