Title :
Generation of bound states of three ultrashort pulses with a passively mode-locked high-power Yb-doped double-clad fiber laser
Author :
Ortaç, B. ; Hideur, A. ; Chartier, T. ; Brunel, M. ; Grelu, P. ; Leblond, H. ; Sanchez, F.
Author_Institution :
Groupe d´´Opt. et d´´Optronique, St. Etienne Du Rouvray, France
fDate :
5/1/2004 12:00:00 AM
Abstract :
We report the generation of high-power ultrashort bound states of three pulses in an ytterbium-doped double-clad fiber laser. The laser is mode-locked through nonlinear polarization rotation technique in a unidirectional cavity configuration. A pair of diffraction grating is incorporated in the cavity to compensate for the normal dispersion of the fiber. The laser generates chirped bound states of three pulses with either equal or different time separations, with more than 500-pJ energy per pulse. These pulses are subsequently compressed to 100 fs with a compression factor of more than 40.
Keywords :
bound states; chirp modulation; diffraction gratings; fibre lasers; laser cavity resonators; laser mode locking; nonlinear optics; optical fibre cladding; optical fibre dispersion; optical fibre polarisation; optical pulse compression; optical pulse generation; optical rotation; ytterbium; 100 fs; 500 pJ; Yb-doped double-clad fiber laser; chirped bound states; diffraction grating; fiber dispersion; high-power bound states; nonlinear polarization rotation; passively mode-locked fiber laser; pulse compression; ultrashort pulses; unidirectional cavity configuration; Erbium-doped fiber lasers; Fiber lasers; Laser mode locking; Laser theory; Optical fiber polarization; Optical fibers; Optical pulse generation; Optical pulses; Pump lasers; Solitons;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.826118