Pulse generation without gain-bandwidth limitation in a laser with self-similar evolution


With existing techniques for mode-locking, the bandwidth of ultrashort pulses from a laser is determined primarily by the spectrum of the gain medium. Lasers with self-similar evolution of the pulse in the gain medium can tolerate strong spectral breathing, which is stabilized by nonlinear attraction to the parabolic self-similar pulse. Here we show that this property can be exploited in a fiber laser to eliminate the gain-bandwidth limitation to the pulse duration. Broad (∼200 nm) spectra are generated through passive nonlinear propagation in a normal-dispersion laser, and these can be dechirped to ∼20-fs duration.

Publication DOI: https://doi.org/10.1364/OE.20.014213
Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Uncontrolled Keywords: ultrafast lasers,pulse shaping,fiber optics ,amplifiers ,oscillators,Atomic and Molecular Physics, and Optics
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.osa ... =oe-20-13-14213 (Publisher URL)
PURE Output Type: Article
Published Date: 2012-06-18
Published Online Date: 2012-06-11
Authors: Chong, A.
Liu, H.
Nie, B.
Bale, B.G.
Wabnitz, S.
Renninger, W.H.
Dantus, M.
Wise, F.W.


Item under embargo.

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