Problem 7. A) For a cladding to reduce modal distortion, should the the index of refraction of the cladding be 1. Much less than the index of refraction of the core. 2. Slightly less than the index of refraction of the core. or 3. Slightly more than the index of refraction of the core. Justify your answer. B) Why do optical fibers have claddings? C) Why would a pulse spread when it propagates through a material with a speed that depends on frequency?
Problem 7. A) For a cladding to reduce modal distortion, should the the index of refraction of the cladding be 1. Much less than the index of refraction of the core. 2. Slightly less than the index of refraction of the core. or 3. Slightly more than the index of refraction of the core. Justify your answer. B) Why do optical fibers have claddings? C) Why would a pulse spread when it propagates through a material with a speed that depends on frequency?
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Transcribed Image Text:**Problem 7**
**A)** For a cladding to reduce modal distortion, should the index of refraction of the cladding be:
1. Much less than the index of refraction of the core.
2. Slightly less than the index of refraction of the core.
3. Slightly more than the index of refraction of the core.
*Justify your answer.*
**B)** Why do optical fibers have claddings?
**C)** Why would a pulse spread when it propagates through a material with a speed that depends on frequency?
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