Open AccessRaman enhanced polarization-insensitive wavelength conversion based on two-pump four-wave mixing
Author(s) -
Xiaojie Guo,
Chester Shu
Publication year - 2016
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.028648
Subject(s) - energy conversion efficiency , four wave mixing , optics , materials science , raman scattering , brillouin scattering , raman spectroscopy , raman amplification , wavelength , polarization (electrochemistry) , nonlinear optics , phase conjugation , optical pumping , optoelectronics , optical fiber , laser , physics , chemistry
Backward 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.