Broadband and flat parametric gain with a single pump in a multi-section nonlinear fiber arrangement

Summary from only given. Parametric amplification appears now as a promising solution for fiber WDM systems and opens up a new means to cover actual and future telecommunications windows. Optical parametric amplifiers (OPA) can directly generate a broad and flat gain region by using two pump lasers or multiple fibers with different group-velocity dispersions. In this work, we propose and theoretically study multi-section OPA configurations based on four NLFs with different zero-dispersion wavelengths to achieve broadband and flat parametric gain.