Oscillatory transmission of biconically tapered monomode fibers is related to the nonadiabaticity of the process. In this paper, we show that large power transfer from HE11 to other modes, thus large amplitude in the oscillations, cannot be predicted by a formalism using only two coupled local mode equations. A new model based on successive use of the sudden approximation and the adiabatic approximation is considered. Its predictions show good agreement with experimental results.
© 1986 Optical Society of America
Original Manuscript: July 11, 1986
Published: December 1, 1986
Suzanne Lacroix, Roch Bourbonnais, François Gonthier, and Jacques Bures, "Tapered monomode optical fibers: understanding large power transfer," Appl. Opt. 25, 4421-4425 (1986)