Ch5Sec5 - THE FIBER FORUM Fiber Optic Communications...

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THE FIBER FORUM Fiber Optic Communications JOSEPH C. PALAIS PRESENTED BY
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Joseph C. Palais 5.5 2 Section 5.5 Modes In Graded-Index Fibers For the parabolic profile fiber the refractive index is: λ π 2 = o k (5.11) p, q the mode indices (integers) The lowest-ordered mode has p = 0, q = 0 a k q p n k n o o pq eff + + - = = 2 ) 1 ( 1 β
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Joseph C. Palais 5.5 3 MODES IN GRADED-INDEX FIBERS The number of modes for large V ( V > 10) is approximately: 4 2 V N = This is half the number of modes in the SI fiber.
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This note was uploaded on 05/11/2010 for the course EEE EEE-448 taught by Professor Palais during the Fall '09 term at ASU.

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Ch5Sec5 - THE FIBER FORUM Fiber Optic Communications...

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