Transient stimulated Raman scattering of amplified pulses from a passively mode‐locked ring cw dye laser has been demonstrated to be a useful method for the production of coherent near infrared femtosecond light pulses. Hypershort Stokes radiation is generated in capillary waveguides containing high pressure hydrogen (830 nm, 1265 nm) and methane (752 nm, 964 nm, 1340 nm) and pulse shortening factors as large as 2.9 have been observed.