  In this work, we present a high pulse energy multi-wavelength Raman laser
spanning from 1.53 um up to 2.4 um by employing the cascaded rotational
stimulated Raman scattering (SRS) effect in a 5-m hydrogen (H2) -filled nested
anti-resonant fiber (NARF), pumped by a linearly polarized Er/Yb fiber laser
with a peak power of ~13 kW and pulse duration of ~7 ns in the C-band. The
developed Raman laser has distinct lines at 1683 nm, 1868 nm, 2100 nm, and 2400
nm, with pulse energies as high as 18.25 uJ, 14.4 uJ, 14.1 uJ, and 8.2 uJ,
respectively. We demonstrate how the energy in the Raman lines can be
controlled by tuning the H2 pressure from 1 bar to 20 bar
