High-power linearly-polarized tunable Raman fiber laser Project supported by the Fok Ying-Tong Education Foundation, China (Grant No. 151062). |
(color online) (a) Threshold power of the first order Stokes wave, (b) spectrum of the output Stokes wave, (c) output power of the first order Stokes wave and corresponding efficiency, and (d) the output power versus pump power at 1070 nm. |