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The beat length in a single mode optical fiber is 8 cm when light from a laser with a peak wavelength 0.6μm is launched into it. Estimate the modal birefringence.
If the first two statements are true, the third statement is :
I. Oat cereal has more fiber than corn cereal but less fiber than bran cereal.
II. Corn cereal has more fiber than rice cereal but less fiber than wheat cereal.
III. Of the three kinds of cereal, rice cereal has the least amount of fiber.
Consider a single mode fiber having core refractive index n1= 1.5. The fiber length is 12m. Find the time taken by the axial ray to travel along the fiber.
Consider a single mode fiber having core refractive index n1 = 1.5. The fiber length is 12m. Find the time taken by the axial ray to travel along the fiber.
A single mode fiber has mode field diameter 10.2μm and V=2.20. What is the core diameter of this fiber?
A single mode fiber has mode field diameter 10.2μm and V = 2.20. What is the core diameter of this fiber?
Beat length of a single mode optical fiber is 0.6cm. Calculate the difference between propagation constants for the orthogonal modes.
Some of the physical and functional advantages of optical fiber communication are mentioned here. Select the option which tells about the functional advantages of optical fiber communication. I. The transmission bandwidth of the fiber optic cables is higher than the metal cables. II. Since these cables are di-electric, no spark hazards are present. III. Fibre optic cables last longer than copper cables. IV. The amount of data transmission is higher in fiber optic cables. V. Fibre optic cables are immune to electromagnetic interference. VI. These are not affected by electrical noise.
Consider the following statements: 1. Fiber optics is based on the principle of total internal reflection. 2. In an optical fiber communication system, power consumption is extremely low. 3. In India, Reliance Group of Industries is engaged in the manufacture of optical fiber. 4. Optical fiber communications are free from radio frequency interference. Which of the following statements is/are correct?
In a 100 m race, A can beat B by 25 m and B can beat C by 4 m. In the same race, A can beat C by