Title :
Experimental observation of mode evolution in single-mode tapered optical fibers
Author :
Fielding, Alexander J. ; Edinger, Klaus ; Davis, Christopher C.
Author_Institution :
Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA
fDate :
9/1/1999 12:00:00 AM
Abstract :
Step-index single-mode optical fibers were tapered and then cleaved by ion beam milling to allow direct examination of the mode evolution in the taper with a microscope objective and CCD camera. Observation of HE1m modes is reported in tapered fibers cleaved at diameters ranging from 8 to 35 μm. Theoretical scalar mode fields are fit to the experimental data and the mode transitions are explained by considering coupled mode theory
Keywords :
CCD image sensors; coupled mode analysis; optical fibre testing; refractive index; 8 to 35 mum; CCD camera; HE1m modes; coupled mode theory; direct examination; microscope objective; mode evolution; scalar mode fields; single-mode tapered optical fibers; step-index single-mode optical fibers; y ion beam milling; Fluorescence; Ion beams; Optical fiber couplers; Optical fiber devices; Optical fiber sensors; Optical fiber theory; Optical fibers; Optical microscopy; Optical propagation; Optical surface waves;
Journal_Title :
Lightwave Technology, Journal of
