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problem 1: What do you mean by degenerate modes in the optical transmission?

problem 2: What do you mean by the term cut-off wavelength of the optical fiber?

problem 3: What do you mean by total internal reflection?

problem 4: What is the condition which must be satisfied so that the mode is propagated in the fiber?

problem 5: What do you mean by the term normalized frequency of the fiber? On the basis of this, distinguish between single and multimode fibers.

problem 6: describe the method for transmission of light in an optical fiber.

problem 7: In brief point out with the help of appropriate diagrams, the difference between meridional and skew ray paths in the step index fibers.

problem 8: Describe with the help of appropriate diagrams the given concepts in optical fiber transmission:

a) The evanescent field.
b) Mode coupling.

problem 9: Define the normalized frequency for an optical fiber and describe its use in the determination of number of guided modes propagating in a step index fiber.

problem 10: describe with the help of simple ray diagrams:

a) Multimode step index fiber.
b) The single mode step index fiber.

Compare benefits and drawbacks of these two kinds of fiber for use as an optical channel.

Electrical & Electronics, Engineering

• Category:- Electrical & Electronics
• Reference No.:- M97392

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