Title :
Mode excitation in graded-index optical fibers
Author :
Lundgren, L. ; Vilhelmsson, K.
Author_Institution :
Chalmers University of Technology, Research Laboratory of Electronics, Gothenburg, Sweeden
fDate :
8/1/1984 12:00:00 AM
Abstract :
We report on theoretical and experimental investigations of the excitation of graded-index fiber modes by a laser beam. The far-field irradiance distribution and the focusing qualities are measured and are related to the measured refractive-index profiles of some commercially available graded-index fibers. If the fundamental mode is the only one excited, fibers with smooth and homogeneous profiles give good output beam qualities for fiber lengths of several tens of meters.
Keywords :
Optical fiber measurements; Fiber lasers; Laser beams; Laser excitation; Laser modes; Laser theory; Optical fiber communication; Optical fibers; Optical materials; Optical refraction; Refractive index;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.1984.1073641
