Djordjevich Alexandar, Savović Svetislav, Tse Peter W, Drljaca Branko, Simović Ana
City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China.
Appl Opt. 2010 Sep 20;49(27):5076-80. doi: 10.1364/AO.49.005076.
By using the power flow equation, we have examined the state of mode coupling in strained and unstrained step-index glass optical fibers. Strained fibers show stronger mode coupling than their unstrained counterparts of the same type. As a result, the coupling length where equilibrium mode distribution is achieved and the length of fiber required for achieving the steady-state mode distribution are shorter for strained than for unstrained fibers.
