Raman enhanced polarization-insensitive wavelength conversion based on two-pump four-wave mixing
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AbstractBackward Raman amplification is applied to improve the conversion efficiency of two-orthogonal-pump four-wave mixing (FWM) with polarization insensitivity. Wavelength conversion with ~0dB efficiency and negligible polarization dependency is demonstrated by using a common highly nonlinear fiber without pump dithering. The conversion efficiency is increased by ~29dB with Raman enhancement. We also discuss the impact of the Raman pump power and the FWM pump powers on the performance of wavelength conversion. The results indicate that moderate pump powers without inducing significant spontaneous noise and stimulated Brillouin scattering are favorable to ensure high conversion efficiency and low excess noise for performance optimization.
All Author(s) ListGuo Xiaojie, Shu Chester
Journal nameOptics Express
Volume Number24
Issue Number25
PublisherOptical Society of America
Pages28648 - 28658
LanguagesEnglish-United States

Last updated on 2021-22-02 at 00:34