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Mode coupling in strained and unstrained step-index glass optical fibers

2010; Optica Publishing Group; Volume: 49; Issue: 27 Linguagem: Inglês

10.1364/ao.49.005076

0003-6935

Alexandar Djordjevich, Svetislav Savović, Peter W. Tse, Branko Drljača, Ana Simović,

Photonic Crystal and Fiber Optics

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.