50 fs pulses from an all-normal dispersion erbium fiber oscillator.
We present a mode-locked, all-normal-dispersion erbium-doped fiber oscillator generating output pulses with broadband spectra covering the range from 1475 to 1620 nm. The oscillator operates at a repetition rate of 109 MHz with output pulse energies of 1.6 nJ. Mode-locked operation is achieved by use of nonlinear polarization evolution in combination with a birefringent filter. The output pulses are dechirped with an external prism compressor to a duration of 50 fs.
Chichkov
Nikolai B
NB
Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany. n.chichkov@lzh.de
Hausmann
Katharina
K
Wandt
Dieter
D
Morgner
Uwe
U
Neumann
Jörg
J
Kracht
Dietmar
D