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Belkin A2F20200-10M 32.81ft...
The demand for more bandwidth puts a continual strain on a Local Area... More |
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Belkin A2F20200-03M 10 ft...
The demand for more bandwidth puts a continual strain on a Local Area... More |
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[+] enlarge |
Hosa OPM-310 10 ft Cable
If you are looking for top quality Cables, there is no comparison to Hosa... More |
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Belkin a2f2020001m 3.28ft...
The demand for more bandwidth puts a continual strain on a Local Area... More |
- 1.www.springfieldwebsolutions.com/urllist.txt
- http://www.springfieldwebsolut
ions.com/ http://www.springfieldwebsolut ions. ... http://www.springfieldwebsolut ions.com/fiberoptics/fiber _optics_technology .htm ... - http://www.springfieldwebsolut
ions.com/urllist.txt
- 2.www.springfieldwebsolutions.com/sitemap.xml
- http://www.springfieldwebsolut
ions.com/help.htm. http://www. ... http://www.springfieldwebsolut ions.com/fiberoptics/fiber _optics_technology .htm ... - http://www.springfieldwebsolut
ions.com/sitemap.xml
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Does improved fiber-optic It use to be you had to sit by
a flaming shrubbery to talk to
God.
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This made me laugh, have a star. |
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how do i get fiber-optic |
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Call your telephone company. |
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what is fiber optic |
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Optical Fibres are fibres of usually glass, sometimes plastic in audio applications, usually about 120 micrometres in diameter, which are used to carry signals in the form of pulses of light over distances up to 50 km without the need for repeaters. These signals may be coded voice communications or computer data. Reflection and Refraction of Light When light travelling in a transparent material meets the surface of another transparent material two things happen some of the light is reflected some of the light is transmitted into the second transparent material The light which is transmitted usually changes direction when it enters the second material. This bending of light is called refraction and it depends upon the fact that light travels at one speed in one material and at a different speed in a different material. As a result each material has its own Refractive Index which we use to help us calculate the amount of bending which takes place. Refractive index is defined as:- n=C/V where n is the refractive index C is the speed of light in a vacuum V is the speed of light in the material Two possible cases exist. These are:- where light goes from a material with a low refractive index to one with a high refractive index, OR where light goes from a material with a high refractive index to one with a low refractive index. The transmitted ray now tries to travel in both materials simultaneously For various reasons this is physically impossible so there is no transmitted ray and all the light energy is reflected. This is true for any value of q 1, the angle of incidence, equal to or greater than q c This phenomenon is called Total Internal Reflection (TIR). We can define the two conditions neccessary for TIR to occur The refractive index of the first medium is greater than the refractive index of the second one. The angle of incidence, q1, is greater than or equal to the critical angle, qc The phenomenon of TIR causes 100% reflection. In no other situation in nature, where light is reflected, does 100% reflection occur. So TIR is unique and very useful. Light Sources There are two main light sources used in the field of fibre optics.- Light Emitting diodes (LED's) Laser Diodes (LD's) LED's An LED is a p-n junction diode in a transparent capsule usually with a lens to let the light escape and to focus it. LED's can be manufactured to operate at 850 nm, 1300 nm, or 1500 nm. These wavelengths are all in the infrared region. LED's have a typical response time of 8 ns, a linewidth of 40 nm, and an output power of tens of microwatts. Laser Diodes A laser diode Is an LED with two important differences (1) The operating current is much higher in order to produce OPTICAL GAIN (2) Two of the ends of the LD are cleaved parallel to each other. These ends act as perfectly aligned mirrors which reflect the light back and forth through the "gain medium" in order to get as much amplification as possible The typical response time of a laser diode Is 0.5 ns. The linewidth is around 2 nm with a typical laser power of 10's of milliwatts. The wavelength of a laser diode can be 850 nm, 1300 nm, or 1500 nm. |
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How do you find out what level of fiber optics or t-1 lines tou need? this would be for a casino there are 3 sites that need to communicate and management and regulatory need to be seperated.