Title :
Impact of Zero-Dispersion-Wavelength Distributions on the Noise Figure Nonreciprocity of a Fiber Parametric Amplifier
Author :
Tong, Zhi ; Lundström, Carl ; Karlsson, Magnus ; Andrekson, Peter A.
Author_Institution :
Dept. of Microtechnol. & Nanosci., Chalmers Univ. of Technol., Goteborg, Sweden
fDate :
3/15/2011 12:00:00 AM
Abstract :
For the first time we both theoretically and experimentally show that the zero-dispersion-wavelength (ZDW) variations in highly nonlinear fibers (HNLFs) will modify the output noise figure (NF) of a fiber optical parametric amplifier and make it nonreciprocal, due to the Raman phonon induced excess noise. The results show that a longer ZDW (but still below the pump wavelength) close to fiber input will give a better noise performance. The experimental results agree well with theory.
Keywords :
Raman spectra; optical fibre amplifiers; optical fibre dispersion; optical parametric amplifiers; Raman phonon induced excess noise; fiber optical parametric amplifier; highly nonlinear fibers; noise figure nonreciprocity; zero-dispersion-wavelength distributions; Gain; Noise; Noise measurement; Optical fiber amplifiers; Optical fiber theory; Stimulated emission; Four-wave mixing; Raman scattering; noise measurement; optical parametric amplifier;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2106202
