Q penalties due to pump phase modulation and pump RIN in fiber optic parametric amplifiers with non-uniform dispersion
| Autor: | A. Guimaraes, Hugo L. Fragnito, F.A. Callegari, Jorge D. Marconi, J.M. Chavez Boggio |
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| Rok vydání: | 2005 |
| Předmět: |
Materials science
Optical fiber business.industry Relative intensity noise Amplifier Optical communication Physics::Optics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Zero-dispersion wavelength Optics law Dispersion (optics) Fiber Electrical and Electronic Engineering Physical and Theoretical Chemistry business Phase modulation |
| Zdroj: | Optics Communications. 249:451-472 |
| ISSN: | 0030-4018 |
| Popis: | We present an experimental and numerical investigation of the quality factor degradation (Δ Q ) due to pump phase modulation and pump relative intensity noise (RIN) in single- and double-pumped fiber optical parametric amplifiers (FOPAs). These penalties are investigated in FOPAs constructed with fibers having constant and randomly varying zero dispersion wavelength ( λ 0 ) along the fiber. We show that pump phase modulation in uniform fibers (constant λ 0 ) produces large Q penalties, while in fibers with variations of λ 0 , these penalties can be strongly reduced in both, single and double-pumped FOPAs. We also show that Q penalties due to pump phase modulation tend to disappear in FOPAs made with very short fibers ( L S 0 2 -km). The Q penalties due to pump RIN, which for typical FOPA parameters are much smaller than those due to pump phase modulation, are also reduced in non-uniform fibers (varying λ 0 ), but do not depend on fiber length neither on fiber dispersion slope. |
| Databáze: | OpenAIRE |
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