One of the requirements for generating a low noise supercontinuum (SC) in a normal dispersion fiber using a femtosecond (fs) pump is to have the minimum absolute dispersion wavelength to be close to zero in order to avoid parametric Raman noise [1]. SC generation in all-normal dispersion fibers can under certain requirements provide a highly coherent spectrum [2, 3], which is of key importance to a large range of imaging and spectroscopy applications. Key requirements to avoid Raman noise and noise from polarization mode instability (PMI) is to have a sufficiently low peak power (P0), short pulse length (T0), short fiber length, and high fiber birefringence [4].

© 2019 IEEE

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