In single-mode fibers, how does the fraction of energy traveling through bound mode appear in the cladding?
A. As a crescent wave
B. As a gibbous wave
C. As an evanescent wave
D. All of the above
Answer:C
In single-mode fibers, how does the fraction of energy traveling through bound mode appear in the cladding?
A. As a crescent wave B. As a gibbous wave C. As an evanescent wave D. All of the above