Fig. 1: Comb-assisted stimulated Raman scattering.
From: Stimulated Raman scattering metrology of molecular hydrogen
EOM electro-optic modulator, M mirror, BC beam combiner, BS beam sampler, DM dichroic mirror, BD beam dumper, PD photodiode, OFC optical frequency comb, SHG second-harmonic generation. Comb referencing of pump and Stokes lasers is obtained through second-harmonic generation of selected spectral portions of an octave-spanning continuum generated by an Er:fiber comb (see “Methods” for details).
