Q34
A step-index fiber has core refractive index 1.46 and radius 4.5μm. Find the cutoff wavelength to exhibit single mode operation. Use relative index difference as 0.25%.
A.
1.326μm
B.
0.124μm
C.
1.214μm
AnswerD.
0.123μm
Answer: Option C
Solution
Answer: Option C
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