Find the maximum possible core diameter which allows single_mode opera – McqOptions

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1.	Find the maximum possible core diameter which allows single_mode operation at a wavelength of 1.3 μm in a graded-index fiber having a parabolic refractive index profile core with core refractive index at the core axis of 1.5 and relative index difference of 1%.
A.	2.5 μm
B.	3.3 μm
C.	5 μm
D.	6.6 μm
Answer» E.

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