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- W2090870144 abstract "Multi-wavelength and non-single-frequency seed lasers can be used to suppress stimulated Brillouin scattering and improve the ultimate output power of a fiber laser amplifier. Coherent combining of non-single-frequency and/or multi-wavelength lasers/amplifiers is a promising way to obtain much higher total output power than from coherent combining of single-frequency lasers/amplifiers. Using a stochastic parallel gradient descent algorithm, we demonstrate coherent combining of four-channel multi-wavelength lasers in a master oscillator power amplifier (MOPA) configuration. Four lasers with different wavelengths, namely two non-single-frequency and two single-frequency lasers, are used. The mean power of the main lobe in the closed-loop case is three times that for the open-loop case, approaching 75% of its ideal value. The coherent combining of multi-wavelength and non-single-frequency lasers in a MOPA configuration is validated, and a feasible approach for scaling to high power coherent combining is provided." @default.
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- W2090870144 date "2010-06-23" @default.
- W2090870144 modified "2023-09-25" @default.
- W2090870144 title "Coherent combining of multi-wavelength fiber amplifiers using a stochastic parallel gradient descent algorithm" @default.
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- W2090870144 doi "https://doi.org/10.1088/2040-8978/12/7/075701" @default.
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