Cascaded Raman self-frequency shifted soliton generation in an Er/Yb-doped fiber amplifier

The polarization and power dependencies of cascaded Raman self-frequency shifted solitons generation in a polarization maintaining high power Er/Yb fiber amplifier have been experimentally investigated. The experimental results show the number and amount of cascaded Raman solitons generations and frequency shifts, respectively, dependent on the input polarization state and the gain of the all-PM fiber amplifier. The numerical modeling was also conducted based on the experimental parameters and the experimental results are shown to be in good agreement with the theory.