Fig. 6.

Fiber output spectrum as a function of input laser energy. The pump (P) is clearly visible at 1047 nm, as well as two Stokes lines S1 (1098 nm) and S2 (1153 nm). The wide peak near 1350 nm (S3′) evolves into a broad continuum from 1200 – 1800 nm. The broad peak near 900 nm (AS3′) evolves into a continuum from 600 – 1000 nm.