Open AccessOn the mode-locking mechanism of a dissipative- soliton fiber oscillator
Author(s) -
C. Lecaplain,
Martin Baumgartl,
Sabu Thomas,
Ammar Hideur
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.026742
Subject(s) - optics , mode locking , fiber laser , dissipative soliton , laser , self phase modulation , physics , ultrashort pulse , soliton , photonic crystal fiber , materials science , nonlinear optics , optical fiber , nonlinear system , quantum mechanics
We report on the generation of high-energy pulses in an all normal dispersion photonic-crystal fiber laser. Two mode-locking techniques with and without passive spectral filtering are studied both numerically and experimentally to address a roadmap for energy scaling. It is found that high-contrast passive modulation is a very promising mode-locking technique for energy scaling in dissipative-soliton laser. Moreover, this technique does not need any additional spectral filtering than the limited gain bandwidth to stabilize high-energy ultrashort pulses. The presented laser generates 110 nJ chirped pulses at 57 MHz repetition rate for an average power of 6.2 W. The output pulses could be dechirped close to the transform-limited duration of 100 fs.