title: Mode coupling in strained and unstrained step-index glass optical fibers.
abstract: 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.
authors.affiliation: City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China.
authors.forename: Alexandar
authors.initials: A
authors.lastname: Djordjevich
authors.forename: Svetislav
authors.initials: S
authors.lastname: Savović
authors.forename: Peter W
authors.initials: PW
authors.lastname: Tse
authors.forename: Branko
authors.initials: B
authors.lastname: Drljaca
authors.forename: Ana
authors.initials: A
authors.lastname: Simović