Calculate the numerical aperture (NA) & hence the acceptance angle for an optical fiber given that RIs of core & cladding are 1.45 & 1.40 respectively.

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written 7.2 years ago by

neeta.vanage • 880

modified 3.2 years ago by

pedsangini276 • 4.8k

Subject: Applied Physics 2

Topic: Fiber Optics

Difficulty: Medium

engineering physics

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1 Answer

4.8kviews

written 7.1 years ago by

neeta.vanage • 880

modified 7.1 years ago by

saurabhsingh • 40

$n_1 = 1.45 \ n_2 = 1.40\ NA=0.377 Sin i_m = NA\ ⸫ i_m = sin - ( NA) \ i_m = sin - ( 0.377)\ i_m = 22.19° \$

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