A graded index fiber has a parabolic refractive index profile (α=2) – McqOptions

MCQOPTIONS

1.	A graded index fiber has a parabolic refractive index profile (α=2) and core diameter of 42μm. Estimate an insertion loss due to a 2 μm lateral misalignment when there is index matching and assuming there is uniform illumination of all guided modes only.
A.	0.18
B.	0.106
C.	0.280
D.	0.080
Answer» E.

Discussion

No Comment Found

Related MCQs

The intrinsic loss through a multimode fiber joint is independent of direction of propagation.
In a single mode fiber, the losses due to lateral offset and angular misalignment are given by 0.20 dB and 0.46 dB respectively. Find the total insertion loss.
Determine coupling efficiency if the misalignment loss in a graded index fiber is 0.102.
A graded index fiber has a parabolic refractive index profile (α=2) and core diameter of 42μm. Estimate an insertion loss due to a 2 μm lateral misalignment when there is index matching and assuming there is uniform illumination of all guided modes only.
A step index fiber has a coupling efficiency of 0.906 with uniform illumination of all propagation modes. Find the insertion loss due to lateral misalignment?
Losses caused by factors such as core-cladding diameter, numerical aperture, relative refractive index differences, different refractive index profiles, fiber faults are known as ____________
Two joined graded index fibers that are perfectly aligned have refractive indices αR = 1.93 for receiving fiber αE = 2.15 for emitting fiber. Calculate the coupling loss.
Two joined step index fibers are perfectly aligned. What is the coupling loss of numerical aperture are NAR= 0.26 for emitting fiber?
The ratio r = (n1 – n)/(n1 – n) indicates ____________
A measure of amount of optical fiber emitted from source that can be coupled into a fiber is termed as ______________