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The polarization-dependent gain process in Raman amplification based all-optical polarization control is investigated. We map the output signal degree of polarization and polarization-dependent in order to asses the signal pulling process over the entire Raman gain bandwidth. We show that, in the undepleted regime, the signal pulling process is more efficient for higher pump powers, whereas for the...
A gain model for Raman fibre amplifiers (RFA) with multiple pumps is proposed. The undepleted pump model for the RFA was customized to include the pump-to-pump interactions. With this approach we are able to accurately predict the amplifier gain without increasing the computational effort. Results show good agreement with numerical simulations and experimental measurements. This simplified model can...
A generalized input polarization analysis of the relative state of polarization between two signals in high-birefringence fibers is presented. The degree of co-polarization is calculated as a function of the polarization orientation and ellipticity of the two input signals, for two different input polarization schemes. It is shown that for small fiber lengths or narrow wavelength separation, launching...
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