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Optical Communications

Optical communication is a form of telecommunication that makes use of light – the portion of electronic radiation visible to the human eye – as the transmission medium. An optical communication system includes a transmitter, a channel and a receiver.

389 Questions

What materials are used in fiber optic communication?

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Asked by Wiki User

Verizon FiOS & Verizon Broadband Services offer blazing speed & crystal clarity of the 100% fiber optic Fios network & proven reliability for their TV, Internet & phone products that will exceed your expectations today & keep you connected down the road.

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What is used in optical fiber communication?

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Asked by Wiki User

WDM wavelength division multiplexing

Why will a diverging lens never produce a real image?

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Asked by Wiki User

A diverging lens can only produce a virtual image, because the light passing through a diverging lens never converges to a point. The virtual image produced by a diverging lens is always right-side-up and smaller than the original object. The image and the object viewed are always on the same side of the lens. Diverging lenses are used as viewfinders in cameras.

When the water is rough - why can't you see a clear image?

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Asked by Wiki User

Light rays are refracted and reflected through and from rough water as though from multiple microcosms of water with multiple and complex surfaces. The rays are refracted and reflected randomly in many directions causing images to distort chaotically and to appear unclear or unrecognizable. The distortion of the images can be so severe that only the rough surface of the water is noticeable.

In what field are the latest medical inventions?

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Asked by 2DPoint

In most medical fields scientists are constantly introducing new developments . It is probably in the field of Radiology and Imaging where most technological inventions have appeared in the latest years, but from laboratory technologies up to nuclear medicine, all large and small branches of medicine are constantly evolving in technology and systems.

What are the Elements of optical fiber communication link?

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Asked by Wiki User

If light meets the inner surface of the cladding (the core - cladding interface) at greater than or equal to Qc then TIR occurs. So all the energy in the ray of light is reflected back into the core and none escapes into the cladding. The ray then crosses to the other side of the core and, because the fiber is more or less straight , the ray will meet the cladding on the other side at an angle which again causes TIR. The ray is then reflected back across the core again and the same thing happens. In this way the light zig zags its way along the fiber. This means that the light will be transmitted to the end of the fiber.

In reality the light which enters the fiber is a focused beam, consisting of many millions of "rays" behaving in a similar way. They all zig zag along the core of the fiber, crossing over each other, and filling up the core with light. A pulse of light traveling along the core of the fiber is really a bundle of these rays.

Whats the Speed of light in an optical fiber?

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Asked by Wiki User

It depends on the material. The speed of light in a vacuum is c = 299,792,458 m/s. Any other material will cause the light to slow down and can be calculated from the material's refractive index. So, for instance, quartz has an index of refraction, n = 1.45. The speed of light in a quartz optical fibres will be:

v = c/n = 206,753,419 m/s.

The propagation speed of a fibre is usually given in terms of a percentage:

V = 100 x c/n.

For the quartz fibre, the propagation speed in 69% of c.

Optical fibres use the property of refraction to keep the light 'inside' the fibre. Using an inner core fibre and an outer 'sheath' fibre with a lower refractive index, the light can be totally internally reflected within the fibre with no need for mirrored surfaces.

What are the different types of fiber connector cite their advantages and disadvantages?

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Asked by Wiki User

Screw terminals, braided eyelets, plugs and sockets, insulated screw connectors, wire clip connectors (wire push-ins), twists inside wire nuts, plain wire soldered joints, soldered wire joints to posts and soldered legs for integrated circuits on printed circuit boards.

For more information see the answers to the Related Questions shown below.

What are thea dvantages and disadvantages of optical fiber?

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Asked by Wiki User

advantages are being able to communicate, and transmit information over long distances. unfortunately though they cannot transmit into space on there own, and can break - being made out of fine glass and plastic that they are!
disadvantages is that you get splinters from the fibres and the really hurt trust me ive had a few of those little suckers ha de ha

Which can transmit faster optical fiber or copper wire?

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Asked by Wiki User

Verizon FiOS & Verizon Broadband Services offer blazing speed & crystal clarity of the 100% fiber optic Fios network & proven reliability for their TV, Internet & phone products that will exceed your expectations today & keep you connected down the road.

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What is tunnel effect in optical fibers?

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Asked by Wiki User

You can find the answer in the link, it is in blog.ourfiber.com, a lot of professional article in this blog.

What are the top ten funny ways to get revenge on someone?

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Asked by Wiki User

At work:

1. Hang a Klan outfit in full view of everyone that walks by his office.

2. Saturate his desk chair with spray adhesive, it stays very sticky long term.

3. Slightly loosen his bleader valves, just slightly.

4. Get a group of buddies to help you turn his car sideways between two others.

5. Jump him and glue his hands to his face.

6. Fill one of his cigarettes with tobacco / pot mixture. Everyone will smell it!

7. A little g** p**n sticking out bottom of desk never hurt anyone.

8. If he is a racist, make sure one black woman knows it.

9. Tie him up turn off the lights and lock the door.

10. Wire his office door handle to the nearest electrical outlet.

At home:

1. Late at night, light a roll of 1000 black cats outside his bedroom window. Do this night after night.

2. Using vegetation killer write "P****rt" on his lawn, Heavily.

3. Set off his car alarms in the middle of the night for weeks at a time.

4. Turn off his water main at the meter.

5. Vaseline, windshield, get it.

6. Sand in fuel tank.

7. Potato in exhuast.

8. While it's raining at night, drop off a bunch of bags of concrete in his driveway and yard, you gotta throw them hard.

9. Print fliers explaining how this person is so bad, name address phone number etc. Everyone in the neighborhood needs one.

10. Superglue filled key holes.

11. A few holes in his exhuast.

12. Trash day, tie the full bags to his rear bumper. Maybe they won't notice.

13. Remove a small patch of shingles at peak of roof on backside only.

Works especially well with vaulted ceilings. Its expensive. The water damage I mean.

14. Draw something in his driveway with vaseline.

15. Follow them around, make them think they are being followed. Paranoid people do crazy things.

Peacefully Disgrunted, Clam and collected. I will be OK.

Why optical communication is used in long distance communication?

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Asked by Wiki User

Because it transmits data much faster, cooler, and with less chance of interference than metal cable.