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We present a quasi alignement-free fiber-based optical parametric amplifier for coherent anti-Stokes Raman scattering (CARS) in (non-)biological samples. The wavelength tuneable, narrowband generation of CARS pump and Stokes pulses is based on four-wave-mixing in photonic crystal fibers. With its performance in CARS spectro- and microscopy the compact fiber system directly competes with table-top optical parametric bulk systems.