Figure 5
From: 2nd-order random lasing in a multimode diode-pumped graded-index fiber
(a) Measured output power at the pump (squares), the first (circles) and the second (triangles) Stokes wavelength versus the input pump power for three different random RFL configurations with 2nd order Raman shift of 300 (RRFL 1), 486 (RRFL 2) and 442 (RRFL 3) cm−1. (b) Corresponding positions of the shift on the Raman gain profile.
