Short-pulse, all-fiber, Raman laser with dispersion compensation in a holey fiber

摘要

The use of Raman gain in conventional fiber followed by dispersion compensation in a holey fiber in a synchronously pumped laser configuration allowed compression by a factor of 8.5 of output pulses at a selected wavelength with respect to the pump pulses. We obtained 2-ps output pulses at 1.14 μm from a totally fiber-integrated laser pumped with 17-ps pulses at 1 μm. Higher pulse compression should be possible with nonlinear chirp compensation. Ultrashort-pulse, all-fiber Raman lasers at wavelengths shorter than 1.3 μm are feasible.