Title :
An etched two-mode fiber modal coupling element
Author :
Vaziri, Masoud ; Chen, Chin-Lin
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
fDate :
3/1/1997 12:00:00 AM
Abstract :
When a fiber with topological structures built directly on the cladding is compressed longitudinally, lateral bends are induced. The lateral bends lead to mode coupling. We have built several etched two-mode fiber modal coupling elements to take advantage of this effect of bending. The resulting modal coupling elements are compact. More importantly, the percentage of power converting from one mode to another is variable by varying the axial compression. In this paper, we present a theoretical model describing the mode conversion in the etched fiber elements. Also discussed are the fabrication and testing of the modal coupling elements and the experimental confirmation of the theoretical model
Keywords :
bending; etching; optical fibre cladding; optical fibre couplers; optical fibre fabrication; optical fibre testing; optical fibre theory; topology; axial compression; cladding; compressed longitudinally; etched fiber elements; etched two-mode fiber modal coupling; etched two-mode fiber modal coupling element; lateral bends; modal coupling elements; power convertion; theoretical model; topological structures; Acoustic waves; Control systems; Etching; Fabrication; Fiber gratings; Optical fiber couplers; Optical fiber sensors; Optical fiber testing; Optical fibers; Optical interferometry;
Journal_Title :
Lightwave Technology, Journal of
