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We report on the design and numerical simulation of a tunable, near-infrared(NIR) femtosecond noncollinear optical parametric amplifier (OPA) seeded by anonlinear fiber amplifier operating in the parabolic and gain-managed regime.With microjoule-level pump pulses in the visible, we achieved amplificationbandwidths of signal and idler pulses between 1010-1170 nm and 920-1050 nm,respectively, and whose second harmonics correspond to the visible rangebetween ~460-585 nm. The estimated quantum efficiency for the conversion of thepump to signal and idler pulses combined was greater than 15%. This appreciablevalue in a single OPA stage is due to the high spectral energy density of thefiber-amplified broadband pulse - about 30 times greater in the 1 {\mu}m rangewhen compared to white-light continuum (WLC) pulses, which are often used toseed commercial OPAs. When combined with their excellent spatial beam qualityand full coherence across their entire bandwidth, fiber-amplified pulses enablemore efficient engineering and application of OPAs in the visible and NIR.

Fiber-Amplified Pulses Beyond the Gain Narrowing Limit for Seeding an OPA