Title :
New Gaussian-based approximation for modelling non-linear effects in optical fibers
Author :
Holmes, M.J. ; Spirit, D.M. ; Payne, F.P.
Author_Institution :
Dept. of Eng., Cambridge Univ., UK
fDate :
2/1/1994 12:00:00 AM
Abstract :
The use of Gaussian field approximations enables simple analytical models to be derived for non-linear fibers and doped-fiber lasers and amplifiers. A new Gaussian-based method is described that is as easy to use as the standard Gaussian approximations, yet provides an rms error in the confinement factor of only 1.1% for a wide range of matched-cladding fibers. Similar accuracy is obtained for depressed-cladding fibers. The new approximation is used to predict Raman gain in a typical experimental MCVD fiber and excellent agreement is obtained between theory and experimental measurements
Keywords :
Raman lasers; fibre lasers; optical fibre theory; stimulated Raman scattering; Gaussian-based approximation; MCVD fiber; Raman gain; SiO2-GeO2; accuracy; amplifiers; confinement factor; depressed-cladding fibers; doped-fiber lasers; matched-cladding fibers; modelling; nonlinear effects; optical fibers; rms error; simple analytical models; Doped fiber amplifiers; Erbium-doped fiber lasers; Gaussian approximation; Optical fiber devices; Optical fiber theory; Optical fibers; Optical waveguides; Pump lasers; Semiconductor lasers; Waveguide lasers;
Journal_Title :
Lightwave Technology, Journal of
