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What is the difference between step index and graded index optical fiber?
1. Step index fiber is of two types viz; mono mode fiber and multi mode fiber. Graded index fiber is of only of one type that is multi mode fiber. 2. The refractive index of the core of the step index fiber is constant through out the core. The refractive index of the core of the graded index fiber is maximum at the center of the core and then it decreases towards core-cladding interface. 3. Number of modes for step index fiber N = V2/2, where V is cut off frequency or normalized frequency or V- number Number of modes for graded index fiber is N = V2/ 4. 4. V number can be less that 2.405 or more that 2.405 for step index fiber V number is always more than 2.405 for graded index fiber. 5. Step Index Fiber is a fiber in which the core is of a uniform refractive index and there is a sharp decrease in the index of refraction at the cladding. Graded Index Fiber is a type of fiber where the refractive index of the core is lower toward the outside of the fiber. It bends the rays inward and also allows them to travel faster in the lower index of refraction region. This type of fiber provides high bandwidth capabilities.
Who does the voice over for the Fiber One commercials?
I'm not which Fiber 1 commercial you are referring to, but sometimes I swear it is Robert De Niro
A fiber tract that provides for communication between the cerebrum and the CNS area?
If the fiber tract connects the cerebral cortex and the lower brain or spinal cord then it is referred to as a projection tract.
What materials are used in fiber optic communication?
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What is used in optical fiber communication?
WDM wavelength division multiplexing
What is now Dupont's fiber A?
Orlon
What is the name of the first purely synthetic fiber intriduced by the DuPont Corporation at the 1939 World's Fair?
nylon
Is Nylon a synthetic fiber or a natural fiber?
Nylon is a synthetic fiber made from petroleum products. It was first developed by DuPont in the 1930s and is known for its strength, durability, and elasticity.
Is Gortex the warmest type of coat?
It was until DuPont created the "Hollow Fiber Technology" which is warmer than Gortex and wool.
What was DuPont forced to do as a result of the economic downturn?
cut jobs, close plants, and shift operations to include joint ventures in the company's textile business. While DuPont had dominated the fiber business for half a century,
Who discovered Synthetic fiber?
Synthetic fibers were discovered by Wallace Carothers, who was a chemist working for DuPont in the early 20th century. Carothers is credited with creating the first synthetic fiber, known as nylon, in 1935.
What was the first synthetic fiber?
The first synthetic fiber was nylon, which was created by DuPont in 1935. Nylon was developed as a substitute for silk and quickly became popular for use in clothing, stockings, and other textile products.
Name the first synthetic fiber when and by whom was it discovered?
The first synthetic fiber was nylon, discovered in 1935 by Wallace Carothers, who was a chemist working for DuPont. Nylon was the first successful synthetic textile fiber and revolutionized the textile industry.
When was polyester fabric manufactured?
Birtwhistle and C.G. Ritchiethey created the first polyester fiber called Terylene in 1941 (first manufactured by Imperial Chemical Industries or ICI). The second polyester fiber was Dupont's Dacron.
Is Antron III synonymous with nylon tricot?
No Antron III is Dupont's trademark name for the nylon fiber they produced which was the prefered fiber for making nylon tricot. Apparently, it was superior to Antron II. Antron III is nylon, but only the particular fiber produced by Dupont is Antron III. I've never seen any other nylon clothing fabrics described as "Antron III," but I have seen carpet advertised as "Antron III." I don't know what you call that weave, but it certainly isn't a tricot. It was Dupont's marketing ploy to get textile companies to use Antron III as part of the description of the material that the fabric was made from. Now, Chinese manufacturers dominate the nylon thread market, so Dupont can no longer insist that textiles advertise Dupont's product. That is why you are only going to see "Antron III" on artifacts from the 20th Century.
How much does a chemical operator make for dupont?
42,000 year
What Synthetic Fiber did Wallace H Carothers invent?
He invented nylon. He did so in 1930 when he worked at the Dupont Chemical Company, and he made it as an affordable alternative to silk.
