Generation of Femtosecond Pulses at 1080 nm and 1200 nm in Ytterbium-Doped Fiber

We demonstrate a synchronously-pumped Raman oscillator that generates a 48 nJ Stokes pulse at 1200 nm and a 43 nJ pulse at 1080 nm, extending the spectral range of conventional ytterbium-doped silica fiber-based ultrafast sources.