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Opt Express. 2010 Feb 1;18(3):2884-93. doi: 10.1364/OE.18.002884.

Full characterization of the signal and idler noise figure spectra in single-pumped fiber optical parametric amplifiers.

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1
Photonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE-412 96 Göteborg, Sweden. zhi.tong@chalmers.se

Abstract

For the first time, four different noise sources, which are amplified quantum noise, Raman phonon seeded excess noise, pump transferred noise (PTN), and pump residual noise, are considered simultaneously to model the wavelength-dependent noise figure in a single-pumped fiber optical parametric amplifier. An asymmetric signal NF spectrum induced by both Raman phonon seeded excess noise and Raman gain modified PTN is measured in the electrical domain. Theoretical results agree very well with the experimental data. The idler NF spectrum is also analyzed and measured, which shows a more symmetric profile.

PMID:
20174117
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