Short-pulse, all-fiber, Raman laser with dispersion compensation in a holey fiber.
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 microm from a totally fiber-integrated laser pumped with 17-ps pulses at 1 microm. Higher pulse compression should be possible with nonlinear chirp compensation. Ultrashort-pulse, all-fiber Raman lasers at wavelengths shorter than 1.3 microm are feasible.
de Matos
C J S
CJ
Femtosecond Optics Group, Department of Physics, Imperial College, Prince Consort Road, London SW7 2BW, England. c.de-matos@imperial.ac.uk
Popov
S V
SV
Taylor
J R
JR