S-EDFA and R-EDFA polarization properties comparison

Experimental results on the behavior of the polarization state of the amplified optical signal for two configurations of erbium doped fiber amplifier: single pass erbium doped fiber amplifier (S-EDFA) and reflective erbium doped fiber amplifier (R-EDFA) employing a circulator and a faraday rotator mirror (FRM) are reported in this paper.