title: Mismatched directional couplers.
abstract: Various twin-core couplers composed of mismatched optical fibers are capable of complete power transfer over lengths only moderately longer than their matched analogs. Examples include tapered and piecewise-continuous mismatched couplers. These linear couplers also provide insight into the mechanism of nonlinear coupling because nonlinearity induces periodic mismatching betweén twin cores that are axially uniform.
authors.forename: A W
authors.initials: AW
authors.lastname: Snyder
authors.forename: Y
authors.initials: Y
authors.lastname: Chen
authors.forename: D
authors.initials: D
authors.lastname: Rowland
authors.forename: D J
authors.initials: DJ
authors.lastname: Mitchell