Mode coupling in strained and unstrained step-index plastic optical fibers.
Using the power-flow equation, we have examined the state of mode coupling in strained and unstrained step-index plastic optical fibers. The strained fibers show much stronger mode coupling than unstrained fibers of the same types. As a result, the coupling lengths where equilibrium mode distribution is achieved and the lengths of fiber required for achieving a steady-state mode distribution for strained fibers are much shorter than the corresponding lengths for unstrained fibers.
Savović
Svetislav
S
City University of Hong Kong, Kowloon, Hong Kong, China. savovic@kg.ac.yu
Djordjevich
Alexandar
A