Sub-60-fs ytterbium-doped fiber laser with a fiber-based dispersion compensation.
We present a mode-locked ytterbium fiber laser with a higher-order mode fiber compensating the group-velocity dispersion and partially the third-order dispersion of the single-mode fiber at a wavelength of 1 microm. The generated pulses had an energy of 0.5 nJ and could be dechirped externally to a pulse duration of less than 60 fs. The power spectrum shows a spectral full width at half-maximum of 57 nm.
Schultz
Michael
M
Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany. m.schultz@lzh.de
Prochnow
Oliver
O
Ruehl
Axel
A
Wandt
Dieter
D
Kracht
Dietmar
D
Ramachandran
Siddharth
S
Ghalmi
Samir
S