An insertion loss insensitive and mean wavelength stable polarized superfluorescent fiber source

In conclusion, we have developed a linear polarized superfluorescent fibre source (SFS) in double pass backward (DPB) configuration by inserting a polarizer between the rear WDM and the fiber mirror. Compared with the conventional unpolarized SFS, the current polarized SFS can provide nearly 1.7 times power when pumped at the same level. In addition, our polarized DPB SFS shows less sensitivity to the insertion loss and conserves the mean wavelength stability over a large pump power region as the conventional DPB SFS.