Title :
Impact of pump-phase modulation on dual-pump fiber-optic parametric amplifiers and wavelength converters
Author :
Yaman, F. ; Lin, Qiang ; Radic, Stojan ; Agrawal, Govind P.
Author_Institution :
Inst. of Opt., Univ. of Rochester, NY, USA
Abstract :
Modulation of pump phases required for suppressing stimulated-Brillouin scattering is shown to cause large power changes in both the amplified and wavelength-converted signals when dual-pump fiber-optic parametric amplifiers are used. The physical origin of power changes is related to pump-amplitude modulations caused by fiber dispersion. Analytical as well as numerical calculations show that the signal-to-noise ratio of the signal or idler may reduce to below 23 dB when pump phases change rapidly with a sharp rise time.
Keywords :
optical fibre amplifiers; optical fibre dispersion; optical modulation; optical parametric amplifiers; optical pumping; optical wavelength conversion; phase modulation; stimulated Brillouin scattering; dual-pump amplifiers; fiber dispersion; fiber-optic parametric amplifiers; pump-amplitude modulations; pump-phase modulation; signal-to-noise ratio; stimulated-Brillouin scattering suppression; wavelength converters; Brillouin scattering; Fiber nonlinear optics; Optical fiber amplifiers; Optical fiber polarization; Optical pumping; Optical scattering; Optical wavelength conversion; Phase modulation; Power amplifiers; Signal to noise ratio; Optical fiber amplifiers; optical phase conjugation; phase modulation; wavelength conversion;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.856346
