Research Article

Four-Wave Mixing Crosstalk Suppression Based on the Pairing Combinations of Differently Linear-Polarized Optical Signals

Figure 2

Optical spectrum comparison after 70 km SMF (a) without polarization technique at input power of 2 dBm, (b) without polarization technique at input power of 14 dBm, (c) with polarization technique at input power of 2 dBm, and (d) with polarization technique at input power 14 dBm.
243795.fig.002a
(a)
243795.fig.002b
(b)
243795.fig.002c
(c)
243795.fig.002d
(d)