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Answer to Question #70809 in Optics for jagat

Question #70809
The LEDs used in early optical communication systems had a spectral width ∆λ0 of about 20 nm around λ0 = 825 nm. Find τm if Dm = 84.2 (ps/km-nm) and given length of fiber is 2Km.
Expert's answer
The material dispersion is given by
τ_m=D_m×L×∆λ (1)
Of (1) τm=3368 ps.

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