Abstract

The fiber Raman oscillator has received considerable attention as a source for tunable, short pulses in the infrared.^1-3 It consists of a fiber cavity or ring, which is synchronously pumped by an intense pulse train. Stimulated Raman scattering generates Stokes-shifted pulses in the cavity that build up if they are synchronous with the pump. This oscillator has the interesting property that it can be wavelength tuned by changing its cavity length.² Stolen et al. had also suggested tuning by changing the period of the pump pulses.²

© 1996 Optical Society of America