Experiment 8 - and 0< r<= a NA[0(1(r/a α 1/2-unit...

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Experiment -8 AIM: Calculate for Graded index fibers- a) Numerical aperture (NA) c) V number (V) d) Check whether the fiber is single mode or multi mode. e) Graph between V number and wavelength (λ) f) Cut off wavelength (λc) g) Number of modes traveling in fiber (Ms) Input required Boundary limits for inputs Formula Expected output Units NA[0] n 1 [0] and n 2 1.4 < (n 1 [0] , n 2 ) < 1.5 and n 1 [0] > n 2 (n 1 [0] 2 - n 2 2 ) 1/ 2 0.14 to 0.20 unit less NA[r] NA[0] and a 0.3 μm < 2a < 25 μm
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Unformatted text preview: and 0 < r <= a NA[0] * (1-(r/a) α ) 1/2-unit less V a and NA and λ 1.1μm < λ< 1.7μm and 0.3 μm < 2a < 25 μm (2πa/λ)*NA[r] 0 to 12 And V<=2.405 for single mode fiber and V>2.405 for multimode fiber unit less λc a and NA and Vc 0.3 μm < 2a < 25 μm and 1< α < ∞ Vc=2.405*{1+(2/ α )}; and (2πa/Vc) )*NA[r]-μm Mg V and α V>=10 and 1< α < ∞ { α /( α +2)}*(V 2 /2);-unit less...
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  • Summer '10
  • XYZ
  • Transverse mode, Fiber-optic communication, Multi-mode optical fiber, Single-mode optical fiber, Graded index fibersa

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